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|title=The Ku Klux Klan, Protestantism, and Christian Nationalism
|description=How the Ku Klux Klan used Protestant Christianity, white supremacy, anti-Catholicism, nationalism, and Americanism to build political and social power.
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[[Category:Christian Nationalism]]
[[Category:Ku Klux Klan]]
[[Category:Protestantism]]
[[Category:White Supremacy]]
[[Category:Anti-Catholicism]]
[[Category:Nativism]]
[[Category:Religion and Politics]]
[[Category:American Nationalism]]
[[Category:United States History]]

**NOTOC**

== The Ku Klux Klan, Protestantism, and Christian Nationalism ==

The history of the Ku Klux Klan illustrates an important intersection of race, religion, nationalism, and political power in the United States. Although the organization is most widely associated with white supremacy and racial violence, the historical record also shows that major periods of Klan activity—particularly the nationwide resurgence of the 1910s and 1920s—were deeply connected to Protestant identity and an exclusionary vision of the United States as a white, native-born, Protestant nation.

The second Ku Klux Klan presented itself not simply as a racial organization but as a defender of Christianity, Protestant morality, patriotism, public schools, traditional social values, and what it frequently called "100 percent Americanism." Its propaganda combined religious language with racial hierarchy, anti-Catholicism, antisemitism, hostility toward immigrants, and arguments about who should be considered a legitimate American.

This fusion of religion and national identity provides an important historical example of a form of Christian nationalism: Christianity was connected to a particular conception of the nation, and membership in the national community was often defined in racial, religious, cultural, and ethnic terms.

=== The Second Klan as a Protestant Movement ===

The Ku Klux Klan created after the Civil War was primarily a white supremacist terrorist organization directed against African Americans and Reconstruction governments. The revived Klan founded in 1915 retained white supremacy while expanding its ideological program and its list of perceived enemies.

The second Klan repeatedly described itself as Protestant and Christian. Its ceremonies, publications, speeches, organizational rituals, recruitment campaigns, and public demonstrations incorporated Christian language and symbolism. Klan leaders portrayed their organization as defending Protestant civilization against forces they claimed threatened the nation.

This religious identity was an important element in the Klan's attempt to present itself as respectable. Rather than describing itself publicly only as a secret organization enforcing racial hierarchy, the Klan often portrayed its members as ordinary Christians defending morality, family, community, and nation.

Historical research demonstrates that the movement attracted substantial support from native-born white Protestants. In some communities, ministers, church members, business owners, elected officials, law-enforcement officers, educators, and other respected citizens participated in or cooperated with Klan organizations.

The movement therefore cannot be understood only as a marginal organization operating outside mainstream society. In several regions during the 1920s, it became embedded in ordinary civic, religious, political, and social networks.

=== Christianity, Race, and National Identity ===

Religion did not replace race within Klan ideology. Instead, Protestant Christianity, whiteness, nationality, and citizenship were frequently presented as mutually reinforcing elements of American identity.

Klan propaganda often suggested that the ideal American was white, native-born, Protestant, patriotic, and loyal to traditional social institutions. Groups that fell outside that model could be portrayed as culturally or politically suspect regardless of their citizenship.

African Americans remained targets of white supremacist ideology and intimidation. Catholics were depicted as owing allegiance to a foreign religious authority. Jews were frequently subjected to religious and ethnic prejudice. Immigrants were portrayed as threats to cultural unity, while other minorities were excluded from the Klan's definition of authentic American identity.

This framework transformed religious identity into a boundary separating those the Klan regarded as fully American from those it portrayed as outsiders.

=== "100 Percent Americanism" ===

One of the most important political ideas associated with the second Klan was "100 percent Americanism."

The phrase linked patriotism to a restrictive definition of American identity. Klan organizations presented themselves as guardians of the flag, Constitution, public schools, Protestant Christianity, traditional morality, and national unity.

Yet the Klan's conception of Americanism was highly exclusionary. It associated national loyalty with particular racial, ethnic, religious, and cultural characteristics.

This allowed racial and religious prejudice to be presented as patriotism. Campaigns against Catholics, immigrants, Jews, African Americans, and other minorities could be described by Klan leaders not merely as prejudice against particular groups but as efforts to protect the country.

The combination of Christianity and nationalism became especially visible in Klan ceremonies, newspapers, speeches, parades, public meetings, and political campaigns. Religious symbolism and patriotic symbolism appeared together, reinforcing the movement's claim that Protestant Christianity was central to American national identity.

=== Anti-Catholicism and the Definition of America ===

Anti-Catholicism became one of the defining features of the second Klan.

The organization frequently claimed that Catholicism represented a political as well as religious threat because Catholics allegedly owed loyalty to the pope rather than exclusively to the United States. Such arguments allowed religious prejudice to be framed as a question of citizenship and national security.

These campaigns were particularly significant in areas with large Catholic immigrant or ethnic populations. Klan organizing in states such as Indiana, Oregon, Maine, Massachusetts, Colorado, and elsewhere frequently became intertwined with conflicts over Catholic institutions and political influence.

Franco-American Catholics in New England, Irish Catholics in urban politics, Catholic universities, parochial schools, and Catholic candidates for public office all became targets of Klan activism.

The controversy surrounding Catholic presidential candidate Al Smith during the 1928 election illustrates the political importance of these attitudes. Opposition to Catholic political power became one of the Klan's recurring methods of linking Protestant identity to its conception of American citizenship.

=== Public Schools and Protestant Americanism ===

Education became another major arena in which Klan ideas about religion and nationalism were expressed.

Klan organizations often supported public education while opposing Catholic parochial schools. Public schools were portrayed as institutions capable of creating a culturally unified population and transmitting the values the Klan associated with Americanism.

In Oregon, the Klan supported efforts to require children to attend public schools, a policy with major implications for Catholic education. Similar debates occurred elsewhere as Klan supporters presented public schooling as a means of "Americanizing" children.

These campaigns demonstrate how the Klan's nationalism extended beyond electoral politics. Schools, churches, families, voluntary associations, newspapers, and civic institutions all became arenas in which competing definitions of American identity were contested.

=== Protestant Clergy and Church Networks ===

Some Protestant ministers actively supported or participated in Klan organizing.

Historical records describe ministers serving as speakers, organizers, recruiters, or public defenders of the movement. Religious authority could provide the Klan with legitimacy, particularly when ministers portrayed its campaigns as defenses of Christianity and morality.

Church and community networks could also provide opportunities for recruitment. In some communities, overlapping participation in churches, fraternal organizations, businesses, schools, and civic organizations helped the Klan establish itself within ordinary social life.

The relationship between Protestant churches and the Klan, however, varied considerably by denomination, region, congregation, and individual minister. Evidence of cooperation in particular communities should not be interpreted as evidence that Protestant Christianity as a whole supported the organization.

=== Protestant Opposition to the Klan ===

The Klan's claim to represent Protestant Christianity was contested from within Protestantism itself.

Some Protestant ministers and religious organizations publicly criticized the Klan. Contemporary sources record clergy denouncing its secrecy, political intimidation, racial and religious prejudice, and coercive methods.

Critics described Klan behavior as inconsistent with Christian teaching, religious liberty, constitutional government, and democratic citizenship. Some ministers who had previously associated with the organization later resigned and publicly condemned it.

These disagreements are important because they show that the relationship between Protestantism and the Klan was neither simple nor uniform. Protestant language could be used to support Klan nationalism, but Protestant religious arguments were also used to challenge it.

Christianity therefore became part of the conflict over the Klan rather than belonging exclusively to either side.

=== Political Power and Mainstream Institutions ===

The second Klan achieved substantial political influence in several states and municipalities.

Indiana became one of the most significant examples. Large numbers of native-born white Protestants joined the organization, and Klan networks became deeply involved in state and local political life.

Similar patterns appeared in Colorado, Texas, Arkansas, Ohio, Oregon, Michigan, Oklahoma, and other states. The precise strength and political objectives of the organization varied considerably from place to place.

Klan members and allies participated in elections, supported candidates, organized voting blocs, promoted legislation, conducted boycotts, held mass rallies, published newspapers, and attempted to influence local government.

The movement's success depended partly on its ability to connect national themes to local concerns. Immigration, education, Prohibition, crime, morality, economic competition, racial hierarchy, Catholic political influence, and changing social customs could all become issues through which Klan organizers mobilized supporters.

=== Regional Variation ===

The Klan adapted its ideology to different regional circumstances.

In the South, white supremacy and racial domination remained central. In Midwestern states, Klan organizing often combined racism with anti-Catholicism, immigration restriction, Prohibition, and Protestant moral reform.

In New England, conflict between Protestant populations and Catholic ethnic communities became especially important. In western states such as Oregon and Colorado, debates about education, morality, immigration, religion, and political control contributed to Klan growth.

These regional differences demonstrate that the second Klan was not merely a southern organization. During the 1920s it operated as a national movement whose broad ideological framework could be adapted to local tensions.

=== Women and Protestant Nationalism ===

Women played an important role in the Klan movement.

The Women of the Ku Klux Klan organized around many of the same themes promoted by the men's organization, including white supremacy, Protestantism, anti-Catholicism, antisemitism, nativism, patriotism, morality, and education.

Women's activism helped extend Klan ideology into schools, families, churches, charitable work, electoral politics, and community organizations.

Klan ideology also assigned women symbolic importance as mothers responsible for maintaining racial, religious, and cultural continuity. Ideas about white womanhood, marriage, motherhood, family morality, and racial hierarchy therefore became connected to the movement's broader nationalist program.

=== Respectability and Everyday Community Life ===

One of the most important findings of modern Klan scholarship is the degree to which the second Klan could exist within ordinary community life.

Membership records from places such as Michigan, Indiana, Colorado, and other states show that Klansmen were not necessarily isolated extremists. Members could include businessmen, professionals, public officials, law-enforcement officers, churchgoers, and participants in civic organizations.

The Klan deliberately cultivated an image of respectability through charitable activities, public ceremonies, church involvement, patriotic rhetoric, family events, and campaigns for moral reform.

This public presentation helped the organization normalize exclusionary ideas by placing them within familiar institutions and cultural traditions.

At the same time, the movement's respectable public image existed alongside intimidation, discrimination, racial hierarchy, religious bigotry, political coercion, and, in some places, violence.

=== Prohibition and Moral Reform ===

Prohibition provided another important connection between Protestant moral reform and Klan politics.

Support for alcohol prohibition already had substantial roots in American Protestant reform movements. The Klan adopted the issue and associated violations of Prohibition with immigrants, Catholics, urban political machines, and groups it considered culturally foreign.

Campaigns over alcohol therefore became another way of defining cultural membership in the nation.

The Klan portrayed itself as defending law, morality, family, and Christian civilization, while critics argued that its vigilantism and intimidation themselves undermined law and constitutional government.

=== The Klan and Christian Nationalism ===

The term "Christian nationalism" is useful when examining the Klan insofar as the organization connected a particular form of Christianity to a particular conception of national identity.

The second Klan repeatedly linked Protestant Christianity with the United States and portrayed the nation's institutions, history, and destiny through a Protestant framework. Its conception of the nation was simultaneously religious, racial, cultural, and political.

The movement's nationalism was therefore not simply an argument that religion should influence public morality. It often defined national belonging through a combination of Protestant identity, whiteness, native birth, cultural conformity, and political loyalty.

This history also demonstrates that Christian nationalism has not always taken identical forms. The Klan's Protestant nationalism differed in important respects from later movements such as Christian Identity, which developed more explicitly racialized theological doctrines.

Careful historical distinctions are therefore necessary when comparing different religious nationalist movements across time.

=== Decline and Continuing Influence ===

The second Klan's political influence declined sharply during the later 1920s.

Internal conflicts, corruption, political defeats, public opposition, investigative journalism, and major scandals damaged the organization's reputation. The crimes and downfall of Indiana Klan leader D. C. Stephenson were particularly destructive to the movement's claim to represent Christian morality and respectable citizenship.

Formal Klan membership declined, but the social ideas that had contributed to its popularity did not necessarily disappear with the organization.

Debates over race, religion, immigration, national identity, education, citizenship, and the relationship between Christianity and American identity continued after the Klan's political decline.

Later Klan organizations also changed ideologically. Some retained older themes of Protestant "Christian Americanism," while others became increasingly connected to more explicitly revolutionary white-power movements and Christian Identity theology.

=== Historical Significance ===

The relationship between the Ku Klux Klan and Protestant Christianity complicates any simple division between religion and extremist politics in American history.

The second Klan demonstrated how a movement devoted to racial and religious exclusion could use familiar religious language, patriotic symbolism, community institutions, and moral reform to seek legitimacy.

It also shows why the study of Christian nationalism requires attention not only to theology but to ideas about race, citizenship, immigration, gender, political authority, and national belonging.

At the same time, the history demonstrates that religious traditions are internally contested. Protestant ministers and churches could assist Klan organizing, remain neutral, or actively oppose the movement. Catholic communities, journalists, political leaders, religious organizations, students, and ordinary citizens also challenged Klan campaigns.

The historical question is therefore not whether Protestant Christianity itself was synonymous with the Ku Klux Klan. Rather, it is how Klan activists appropriated particular Protestant symbols, institutions, fears, and cultural assumptions in an effort to define who counted as a legitimate American.

=== Conclusion ===

The Ku Klux Klan's relationship with Protestantism was central to the history of the organization's nationwide resurgence during the early twentieth century. The second Klan presented itself as a defender of Protestant Christianity, white supremacy, morality, patriotism, and "100 percent Americanism."

Through this ideology, the organization connected religious identity to racial hierarchy and national belonging. Catholics, Jews, African Americans, immigrants, and others could be portrayed as threats to an idealized white Protestant America.

The Klan's influence was strengthened when these ideas entered ordinary political, religious, educational, and civic institutions. Its history therefore demonstrates how exclusionary nationalism can move beyond extremist organizations by drawing upon familiar cultural symbols and community networks.

Yet the same historical record also reveals substantial resistance. Protestant ministers denounced the Klan, Catholic communities organized against it, journalists exposed its activities, political opponents challenged its power, and citizens defended religious liberty and constitutional equality.

The history of the Klan, Protestantism, and Christian nationalism is consequently a history both of exclusion and of conflict over the meaning of Christianity, citizenship, patriotism, and American identity.

**TOC**





=== Scholarly Studies and National Context ===

*[https://scholarworks.harding.edu/tenor/vol14/iss1/13/ | Jacob Rooney | Harding University | 2025]
 Reexamines the confrontation between Notre Dame students and Klansmen within the larger history of Protestant-Catholic conflict and Klan activism in Indiana.

*[https://www.jstor.org/stable/j.ctv1f884dj | Kenneth C. Barnes | University of Arkansas Press | 2021]
 Provides a state-level study explicitly focused on how Protestant white nationalism enabled the Klan to acquire extraordinary political and cultural power in Arkansas.

*[https://www.tandfonline.com/doi/full/10.1080/21567689.2020.1809384 | Gustaf Forsell | Politics, Religion & Ideology | August 20, 2020]
 Analyzes how Klan theology fused Protestant Christianity, white racial ideology, biblical interpretation, and claims that the United States was divinely intended to remain a white Protestant nation.

*[https://scholarworks.iu.edu/journals/index.php/imh/article/view/34570 | James H. Madison | Indiana Magazine of History | June 1, 2020]
 Examines resistance to Indiana's Klan and emphasizes how deeply the organization was embedded among respectable, native-born white Protestants and mainstream institutions during the 1920s.

*[https://academic.oup.com/ahr/article-pdf/125/1/247/32322994/rhz1278.pdf | Thomas R. Pegram | American Historical Review | February 3, 2020]
 Reviews Linda Gordon's account of the 1920s Klan as a mass movement rooted in racial, religious, cultural, and nationalist anxieties rather than solely southern terrorism.

*[https://journals.lib.unb.ca/index.php/Acadiensis/article/view/28985 | Tyler Cline | Acadiensis | March 1, 2019]
 Examines the Canadian Klan's “Patriotic-Protestantism,” which combined Protestant morality, Anglo-Saxon nationalism, anti-Catholicism, and opposition to French-language political influence.

*[https://journals.sagepub.com/doi/10.1177/0096144218793646 | Russell MacKenzie Fehr | Journal of Urban History | August 22, 2018]
 Shows how longstanding Protestant political mobilization in Detroit helped create conditions in which the Klan could successfully appeal to Protestant voters during the 1920s.

*[https://www.cambridge.org/core/journals/journal-of-the-gilded-age-and-progressive-era/article/abs/ku-klux-klan-labor-and-the-white-working-class-during-the-1920s/900D18A539124548FB5366DF335AB970 | Thomas R. Pegram | The Journal of the Gilded Age and Progressive Era | April 27, 2018]
 Explores the complicated relationship between the Klan and white Protestant workers, showing how local economic grievances could intersect with religious, racial, and nativist appeals.

*[https://academic.oup.com/book/26249/chapter-abstract/194454481 | Lucas P. Volkman | Oxford University Press | March 22, 2018]
 Examines religion during Reconstruction, including conflict over Black churches and Klan violence, providing context for the relationship between white supremacy, Christianity, and postwar political power.

*[https://www.jstor.org/stable/j.ctt1ffjfmb | Kenneth C. Barnes | University of Arkansas Press | 2016]
 Shows how politicians, Protestant religious leaders, newspapers, and the Klan portrayed Catholics as threats to American institutions and national identity.

*[https://www.jstor.org/stable/10.5149/9781469625430_parsons | Elaine Frantz Parsons | University of North Carolina Press | 2015]
 Reconstructs the first Klan's emergence after the Civil War and provides essential background for understanding how later movements reshaped its racial, religious, and nationalist mythology.

*[https://ecommons.udayton.edu/hst_fac_pub/11/ | William Vance Trollinger Jr. | American Catholic Studies | Spring 2013]
 Investigates Klan hostility toward Catholic higher education and the University of Dayton, showing how anti-Catholicism became an important component of Klan Protestant nationalism.

*[https://academic.oup.com/jcs/article-pdf/54/2/306/2442004/css031.pdf | Mark Paul Richard | Journal of Church and State | March 20, 2012]
 Reviews Baker's study of the Klan as a religious as well as political movement and evaluates its treatment of Protestant identity and American nationalism.

*[https://www.jstor.org/stable/j.ctt1k857ng | Kelly J. Baker | University Press of Kansas | 2011]
 A major study argues that the second Klan deliberately presented itself as a Protestant movement whose rituals, publications, gender ideals, and nationalism were expressed through Christian language.

*[https://www.si.edu/object/one-hundred-percent-american-rebirth-and-decline-ku-klux-klan-1920s-thomas-r-pegram%3Asiris_sil_1002112 | Thomas R. Pegram | Smithsonian Libraries / Ivan R. Dee | 2011]
 Places the second Klan within “100 percent Americanism,” examining its efforts to define legitimate citizenship through white, native-born, Protestant cultural standards.

*[https://www.readex.com/readex-report/issues/volume-4-issue-3/religion-and-rise-second-ku-klux-klan-1915-1922 | Kelly J. Baker | Readex | 2011]
 Examines how the revived Klan presented itself as a Protestant Christian organization and used religion, nationalism, race, and fears of Catholicism to attract members.

*[https://www.tandfonline.com/doi/abs/10.1080/02722011.2010.519396 | Mark Paul Richard | American Review of Canadian Studies | November 18, 2010]
 Shows how Anglo-Canadian Protestants supported the Klan against French-Canadian Catholics, illustrating the transnational dimensions and contradictions of Protestant nativism and Klan Americanism.

*[https://direct.mit.edu/tneq/article/82/2/285/16430/This-Is-Not-a-Catholic-Nation-The-Ku-Klux-Klan | Mark Paul Richard | The New England Quarterly | June 2009]
 Investigates the Klan's campaign against Franco-American Catholics in Maine and its effort to define American national identity in explicitly Protestant terms.

*[https://www.jstor.org/stable/10.5749/j.ctttsd54 | Rory McVeigh | University of Minnesota Press | 2009]
 Analyzes the social and political circumstances that mobilized native-born white Protestants behind the second Klan and transformed cultural anxieties into organized political activism.

*[https://www.jstor.org/stable/jj.30347357 | Glenn Feldman | University of Alabama Press | 1999]
 Examines the Klan's place in Alabama politics and society across several decades, including the interaction of race, religion, class, moral reform, and white political power.

*[https://www.jstor.org/stable/10.5149/9781469611112_barkun | Michael Barkun | University of North Carolina Press | 1994]
 Traces the religious development of Christian Identity and related racist movements, helping distinguish later explicitly racialist theology from the mainstream-Protestant rhetoric used by the 1920s Klan.

*[https://www.nli.org.il/en/books/NNL_ALEPH997010701543205171/NLI | Leonard J. Moore | University of North Carolina Press | 1991]
 Studies Indiana's exceptionally powerful Klan and shows its broad appeal among ordinary white Protestants who connected nativism and moral reform with their understanding of American citizenship.

*[https://www.tandfonline.com/doi/abs/10.1080/02732173.1987.9981808 | Kathleen M. Blee | Sociological Spectrum | 1987]
 Studies women's participation in the Klan and helps explain how Protestant family ideals, gender expectations, racial hierarchy, and nationalism expanded the movement beyond male fraternal politics.

*[https://stars.library.ucf.edu/fhq/vol42/iss3/3/ | David Chalmers | Florida Historical Quarterly | 1963]
 Examines the second Klan in Florida and provides historical context for its combination of white supremacy, Protestant moralism, nativism, and political activism.

*[https://www.journals.uchicago.edu/doi/10.1086/213721 | Frank Bohn | American Journal of Sociology | January 1, 1925]
 A contemporary sociological analysis describes the second Klan as an important movement of militant nationalism and examines founder William J. Simmons's positions on racial and religious questions.


=== Religion, Protestantism, and Klan Ideology ===

*[https://digitalcommons.colby.edu/honorstheses/626/ | Amanda L. Forrester | Colby College | 2011]
 Analyzes the Klan as a religious institution and civil religion, emphasizing its texts, rituals, Protestant ideology, and spiritual claims.

*[https://archives.iu.edu/catalog/InU-Li-VAD6481 | W. Smith Harper Papers | Lilly Library, Indiana University | 1923–1925]
 Archival papers of a Methodist minister who became a Klan organizer in Minnesota, useful for studying direct links between Protestant clergy and Klan expansion.

*[https://libraries.mercer.edu/archivesspace/repositories/2/archival_objects/14688 | John Roach Straton Papers | American Baptist Historical Society | 1922]
 Archival material in the papers of prominent Baptist minister John Roach Straton documents contemporary Protestant engagement with the Klan controversy.

*[https://archon.library.wmich.edu/agents/corporate_entities/517 | Western Michigan University Archives | Western Michigan University | n.d.]
 Describes Kalamazoo-area Klan papers containing a statement of principles that explicitly included Christian religion and white supremacy.


=== National Politics and 100 Percent Americanism ===

*[https://www.jstor.org/stable/10.5749/j.ctttsd54.3 | Rory McVeigh | The Rise of the Ku Klux Klan, University of Minnesota Press | 2009]
 Explains why the second Klan should be understood as a national movement that mobilized native-born white Protestants around race, religion, and citizenship.

*[https://www.jstor.org/stable/10.5749/j.ctttsd54.4 | Rory McVeigh | The Rise of the Ku Klux Klan, University of Minnesota Press | 2009]
 Traces the Klan’s revival under William J. Simmons and the creation of a national organization built around fraternity, white Protestantism, and Americanism.

*[https://www.jstor.org/stable/10.5749/j.ctttsd54.5 | Rory McVeigh | The Rise of the Ku Klux Klan, University of Minnesota Press | 2009]
 Develops a framework for understanding why groups who felt their economic, political, or cultural position threatened could be drawn to Klan mobilization.

*[https://www.jstor.org/stable/10.5749/j.ctttsd54.6 | Rory McVeigh | The Rise of the Ku Klux Klan, University of Minnesota Press | 2009]
 Shows how the Klan reframed economic change in cultural and religious terms and encouraged supporters to favor members of their own racial and religious group.

*[https://www.jstor.org/stable/10.5749/j.ctttsd54.7 | Rory McVeigh | The Rise of the Ku Klux Klan, University of Minnesota Press | 2009]
 Examines the Klan’s use of “100 percent Americanism” to organize white Protestant voters and influence national and local politics.

*[https://www.jstor.org/stable/10.5749/j.ctttsd54.8 | Rory McVeigh | The Rise of the Ku Klux Klan, University of Minnesota Press | 2009]
 Explores public-school politics and Prohibition as arenas where Protestant moral reform, anti-Catholicism, and Klan nationalism converged.

*[https://www.jstor.org/stable/10.5749/j.ctttsd54.9 | Rory McVeigh | The Rise of the Ku Klux Klan, University of Minnesota Press | 2009]
 Analyzes the social and cultural conditions that made the Klan’s appeals attractive to some native-born white Protestant Americans.

*[https://www.jstor.org/stable/10.5749/j.ctttsd54.10 | Rory McVeigh | The Rise of the Ku Klux Klan, University of Minnesota Press | 2009]
 Compares regional Klan activism and shows how national themes were adapted to local conflicts involving religion, race, immigration, schools, and politics.

*[https://www.jstor.org/stable/10.5749/j.ctttsd54.11 | Rory McVeigh | The Rise of the Ku Klux Klan, University of Minnesota Press | 2009]
 Examines Klan opposition to Al Smith and the role of anti-Catholicism in the movement’s final major national political campaign.


=== State and Regional Studies ===

*[https://njs.libraries.rutgers.edu/index.php/njs/article/view/352 | Tyler Bane | New Jersey Studies | January 26, 2024]
 Investigates the Klan's history in New Jersey and expands understanding of how the movement operated outside its more familiar southern and midwestern strongholds.

*[https://www.oregonhistoryproject.org/articles/historical-records/portland-kkk/ | Dane Bevan | Oregon History Project | 2004; revised 2021]
 Surveys the growth of the Oregon Klan and its campaigns against Catholics, immigrants, and minorities while emphasizing its role in mainstream politics and community institutions.

*[https://www.oregonhistoryproject.org/articles/historical-records/the-truth-about-the-ku-klux-klan-1921/ | Dane Bevan | Oregon History Project | 2004; revised 2021]
 Examines a Klan lecture by Protestant minister Reuben H. Sawyer, illustrating how religious authority and anti-Catholic arguments were used to legitimize the organization.

*[https://www.kansashistory.gov/kansapedia/ku-klux-klan-in-kansas/15612 | Kansas Historical Society | Kansas Historical Society | 2010]
 Surveys Kansas Klan activity and the political and social opposition that eventually limited the organization's institutional power within the state.

*[https://digital.library.unt.edu/ark:/67531/metadc279068/m1/1/ | Mark N. Morris | University of North Texas | 1997]
 A dissertation on the Dallas Klan and its effort to reshape politics and society through white Protestant moral and civic activism.

*[https://www.kansashistory.gov/p/kansas-battles-the-invisible-empire/13247 | Charles William Sloan Jr. | Kansas Historical Society | Autumn 1974]
 Examines Kansas's legal campaign against the Klan and provides important evidence about the organization, its public claims, political ambitions, and opponents.

*[https://gateway.okhistory.org/ark:/67531/metadc1612566/m1/1/ | Oklahoma Herald | Gateway to Oklahoma History | January 22, 1924]
 Documents internal disputes over Klan governance and the concentration of power in the Imperial Wizard during the movement’s national expansion.

*[https://indianahistory.org/wp-content/uploads/Ku-Klux-Klan-Indiana-Ledger.pdf | Indiana Historical Society | Indiana Historical Society | 1924]
 Archival material on Indiana Klan membership illustrates the organization's extraordinary penetration among native-born white Protestant men during the height of its influence.

*[https://www.oregonhistoryproject.org/articles/historical-records/from-wr-burner-to-governor-olcott-1923/ |  | Oregon History Project | 1923]
 A historical document and commentary illustrate contemporary perceptions of the Klan as a Protestant organization and its involvement in anti-Catholic public-school politics.

*[https://www.oregonhistoryproject.org/articles/historical-records/proclamation-against-the-ku-klux-klan-1922/ |  | Oregon History Project | 1922]
 Presents Governor Ben Olcott's public denunciation of the Klan and useful primary-source context for the conflict surrounding religious intolerance and Klan political power in Oregon.

*[https://legacy.wisconsinhistory.org/Records/Article/CS1798 | Wisconsin Historical Society | Wisconsin Historical Society | n.d.]
 Surveys the Wisconsin Klan and its effort to organize around native-born white Protestant identity, nativism, and hostility toward religious and ethnic minorities.

*[https://depts.washington.edu/civilr/kkk_wot.htm | Seattle Civil Rights and Labor History Project | University of Washington | n.d.]
 Uses the Washington Klan's newspaper to examine its propaganda, including the religious, racial, nativist, and political themes through which the organization defined Americanism.

*[https://archives-spec.unl.edu/kampus-klan/national-klan | University of Nebraska–Lincoln Archives & Special Collections | University of Nebraska–Lincoln | n.d.]
 Introduces the national Klan's 1920s ideology, including its anti-Catholicism, antisemitism, racial exclusion, nativism, and expansion into colleges and universities.

*[https://archives-spec.unl.edu/kampus-klan/uni-klan | University of Nebraska–Lincoln Archives & Special Collections | University of Nebraska–Lincoln | n.d.]
 Documents the Klan's attempts to establish itself within university culture and shows how national controversies over race, religion, and Americanism reached college campuses.

*[https://archives-spec.unl.edu/unl-in-the-1920s/ku-klux-klan | University of Nebraska–Lincoln Archives & Special Collections | University of Nebraska–Lincoln | n.d.]
 Presents archival evidence of student reactions to Klan organizing and the controversy surrounding secret religious and racial exclusion on campus.

*[https://plainshumanities.unl.edu/encyclopedia/doc/egp.pd.031.html | Encyclopedia of the Great Plains | University of Nebraska | n.d.]
 Examines Klan activity across the Great Plains and the organization's promotion of “100 percent Americanism” within predominantly white Protestant communities.

*[https://www.tshaonline.org/handbook/entries/ku-klux-klan | Christopher Long | Texas State Historical Association | n.d.]
 Surveys Klan history in Texas, including the second Klan's appeal to white Protestant Americans and its campaigns involving morality, race, religion, and political influence.

*[https://www.tshaonline.org/handbook/entries/dallas-ku-klux-klan-no-66 | Amber Jolly and Ted Banks | Texas State Historical Association | n.d.]
 Documents one of the country's largest Klan chapters and its integration into Dallas civic and political life during the second Klan era.

*[https://www.in.gov/library/collections-and-services/indiana/subject-guides-to-indiana-collection-materials/ku-klux-klan-in-indiana/ | Indiana State Library | State of Indiana | n.d.]
 Provides a research guide to Indiana's 1920s Klan, a central case for studying the movement's connections to white Protestant social networks and state politics.

*[https://www.in.gov/history/state-historical-markers/find-a-marker/indianapolis-times/ | Indiana Bureau of Historical Markers | State of Indiana | n.d.]
 Describes the newspaper's investigation of the Indiana Klan and its role in exposing an organization that had acquired extensive influence in state and local politics.

*[https://depts.washington.edu/civilr/kkk_i49.htm | Kristin Dimick | Seattle Civil Rights and Labor History Project, University of Washington | n.d.]
 Details Klan efforts to restrict private and parochial education as a way of “Americanizing” children and limiting non-Protestant religious instruction.

*[https://www.oregonencyclopedia.org/articles/ku_klux_klan/ | Eckard Toy | Oregon Encyclopedia | n.d.]
 Explains how numerous Oregon Protestant ministers joined or supported the Klan and became spokesmen for its anti-Catholic crusade and campaigns over education.

*[https://resources.ohiohistory.org/ohj/browse/displaypages.php?display%5B%5D=0085&display%5B%5D=280&display%5B%5D=292 | Ohio History Journal | Ohio History Connection | n.d.]
 Documents the scale of the Ohio Klan and the movement’s expanded hostility toward Catholics, Jews, immigrants, and African Americans.

*[https://www.kansashistory.gov/p/james-malone-papers/14065 | Kansas Historical Society | Kansas Historical Society | n.d.]
 Describes archival material documenting Catholic opposition to the Klan in Kansas and the broader religious conflict produced by the Klan's anti-Catholic activism.

*[https://www.historylink.org/File/20718 | HistoryLink.org | HistoryLink | n.d.]
 Provides a detailed overview of the Washington Klan's rapid expansion, anti-Catholicism, political activity, public rallies, and eventual decline.

*[https://www.historylink.org/file/1682 | HistoryLink.org | HistoryLink | n.d.]
 Describes a massive Washington Klan rally that demonstrates how public spectacle, ritual, fraternity, patriotism, and Protestant-centered Americanism helped normalize the movement.

*[https://www.tshaonline.org/handbook/entries/texas-in-the-1920s | Texas State Historical Association | Handbook of Texas | n.d.]
 Places the Texas Klan within the state's larger 1920s political culture, including Protestant ministers, moral reform campaigns, nativism, and partisan politics.

*[https://www.encyclopedia.chicagohistory.org/pages/707.html | Encyclopedia of Chicago | Chicago Historical Society | n.d.]
 Discusses the Klan's strength in northwest Indiana, including support within some Protestant churches and its opposition to Catholics, immigrants, and organized labor.


=== Arkansas and Protestant White Nationalism ===

*[https://www.jstor.org/stable/j.ctv1f884dj.5 | Kenneth C. Barnes | The Ku Klux Klan in 1920s Arkansas, University of Arkansas Press | 2021]
 Traces how the Klan established itself in Arkansas and built a statewide network through civic, fraternal, religious, and political channels.

*[https://www.jstor.org/stable/j.ctv1f884dj.6 | Kenneth C. Barnes | The Ku Klux Klan in 1920s Arkansas, University of Arkansas Press | 2021]
 Examines how the Klan normalized itself as a respectable voluntary association within overwhelmingly Protestant white communities.

*[https://www.jstor.org/stable/j.ctv1f884dj.7 | Kenneth C. Barnes | The Ku Klux Klan in 1920s Arkansas, University of Arkansas Press | 2021]
 Documents Klan outreach, intimidation, anti-Catholic hostility, and efforts to extend the organization’s influence across Arkansas communities.

*[https://www.jstor.org/stable/j.ctv1f884dj.8 | Kenneth C. Barnes | The Ku Klux Klan in 1920s Arkansas, University of Arkansas Press | 2021]
 Analyzes Klan speeches, newspapers, clergy involvement, propaganda, and the rhetoric used to promote Protestant white nationalism.

*[https://www.jstor.org/stable/j.ctv1f884dj.9 | Kenneth C. Barnes | The Ku Klux Klan in 1920s Arkansas, University of Arkansas Press | 2021]
 Explores how Arkansas Klansmen attempted to translate their racial, religious, and moral agenda into electoral and party power.

*[https://www.jstor.org/stable/j.ctv1f884dj.10 | Kenneth C. Barnes | The Ku Klux Klan in 1920s Arkansas, University of Arkansas Press | 2021]
 Examines political, journalistic, religious, and civic resistance to the Klan’s effort to dominate Arkansas public life.

*[https://www.jstor.org/stable/j.ctv1f884dj.11 | Kenneth C. Barnes | The Ku Klux Klan in 1920s Arkansas, University of Arkansas Press | 2021]
 Explains how political defeats, internal conflict, scandal, and changing public attitudes weakened the Arkansas Klan by the late 1920s.

*[https://www.jstor.org/stable/j.ctv1f884dj.12 | Kenneth C. Barnes | The Ku Klux Klan in 1920s Arkansas, University of Arkansas Press | 2021]
 Assesses the longer legacy of Protestant white nationalism in Arkansas after the formal Klan organization lost much of its power.


=== Indiana, Churches, and Political Power ===

*[https://www.jstor.org/stable/j.ctv153k6jh.5 | James H. Madison | The Ku Klux Klan in the Heartland, Indiana University Press | 2020]
 Explains the Klan’s rapid growth in Indiana and asks why large numbers of native-born white Protestants joined the movement.

*[https://www.jstor.org/stable/j.ctv153k6jh.7 | James H. Madison | The Ku Klux Klan in the Heartland, Indiana University Press | 2020]
 Examines Klan warnings that Catholics, Jews, African Americans, and immigrants threatened Protestant religion and the nation.

*[https://www.jstor.org/stable/j.ctv153k6jh.8 | James H. Madison | The Ku Klux Klan in the Heartland, Indiana University Press | 2020]
 Places Klan moralism within broader 1920s fears about social change, sexuality, alcohol, popular culture, and religious decline.

*[https://www.jstor.org/stable/j.ctv153k6jh.9 | James H. Madison | The Ku Klux Klan in the Heartland, Indiana University Press | 2020]
 Examines Indiana political culture and the institutional conditions that allowed the Klan to gain substantial influence.

*[https://www.jstor.org/stable/j.ctv153k6jh.10 | James H. Madison | The Ku Klux Klan in the Heartland, Indiana University Press | 2020]
 Describes the collapse of D. C. Stephenson and the damage his crimes and scandals inflicted on the Klan’s claim to Christian moral authority.

*[https://www.jstor.org/stable/j.ctv153k6jh.11 | James H. Madison | The Ku Klux Klan in the Heartland, Indiana University Press | 2020]
 Studies resistance to Klan intimidation and to its racial, ethnic, and religious conception of “100 percent Americanism.”

*[https://www.jstor.org/stable/j.ctv153k6jh.13 | James H. Madison | The Ku Klux Klan in the Heartland, Indiana University Press | 2020]
 Places later Klan revivals within the longer history of exclusionary nationalism and racial politics in Indiana.

*[https://www.jstor.org/stable/j.ctv153k6jh.14 | James H. Madison | The Ku Klux Klan in the Heartland, Indiana University Press | 2020]
 Considers the decline of organized Klan power while tracing the persistence of ideas about race, religion, nationalism, and exclusion.


=== Michigan and Everyday Protestant Klan Life ===

*[https://www.jstor.org/stable/10.14321/j.ctt7ztcgk.6 | Craig Fox | Everyday Klansfolk, Michigan State University Press | 2011]
 Reassesses the 1920s Klan as a movement embedded in ordinary white Protestant community life rather than only at the social margins.

*[https://www.jstor.org/stable/10.14321/j.ctt7ztcgk.7 | Craig Fox | Everyday Klansfolk, Michigan State University Press | 2011]
 Examines the Klan’s systematic recruitment methods and its effort to package white Protestant fraternalism, morality, and patriotism for mass appeal.

*[https://www.jstor.org/stable/10.14321/j.ctt7ztcgk.8 | Craig Fox | Everyday Klansfolk, Michigan State University Press | 2011]
 Studies how the Klan presented itself as moral, patriotic, Protestant, and respectable while critics constructed competing images of the organization.

*[https://www.jstor.org/stable/10.14321/j.ctt7ztcgk.9 | Craig Fox | Everyday Klansfolk, Michigan State University Press | 2011]
 Uses membership records to investigate who joined the Klan in rural Michigan and how members fit into ordinary community life.

*[https://www.jstor.org/stable/10.14321/j.ctt7ztcgk.10 | Craig Fox | Everyday Klansfolk, Michigan State University Press | 2011]
 Shows how churches, clubs, businesses, schools, and social networks provided recruitment channels for Klan membership.

*[https://www.jstor.org/stable/10.14321/j.ctt7ztcgk.11 | Craig Fox | Everyday Klansfolk, Michigan State University Press | 2011]
 Directly examines the overlap between ordinary white Protestant civic life, church participation, Klan pageantry, morality, and community activism.


=== New England, Anti-Catholicism, and Protestant Americanism ===

*[https://www.jstor.org/stable/j.ctt1hd19qk.4 | Mark Paul Richard | Not a Catholic Nation, University of Massachusetts Press | 2015]
 Frames the New England Klan as a movement deeply shaped by anti-Catholicism and conflicts over ethnicity, labor, religion, and American identity.

*[https://www.jstor.org/stable/j.ctt1hd19qk.5 | Mark Paul Richard | Not a Catholic Nation, University of Massachusetts Press | 2015]
 Traces the movement’s arrival in New England and the adaptation of Klan ideology to a region with large Catholic immigrant populations.

*[https://www.jstor.org/stable/j.ctt1hd19qk.6 | Mark Paul Richard | Not a Catholic Nation, University of Massachusetts Press | 2015]
 Examines Maine Klan organizing and explicit efforts to keep Protestant Americans politically and culturally dominant.

*[https://www.jstor.org/stable/j.ctt1hd19qk.7 | Mark Paul Richard | Not a Catholic Nation, University of Massachusetts Press | 2015]
 Studies Klan campaigns against Franco-American Catholics and the ethnic, religious, and labor conflicts surrounding them.

*[https://www.jstor.org/stable/j.ctt1hd19qk.8 | Mark Paul Richard | Not a Catholic Nation, University of Massachusetts Press | 2015]
 Examines New Hampshire organizing and the Klan’s promotion of white supremacy, Protestantism, and “Americanization.”

*[https://www.jstor.org/stable/j.ctt1hd19qk.9 | Mark Paul Richard | Not a Catholic Nation, University of Massachusetts Press | 2015]
 Explores Vermont resistance to the Klan, including controversy over Klan recruitment at Norwich University.

*[https://www.jstor.org/stable/j.ctt1hd19qk.10 | Mark Paul Richard | Not a Catholic Nation, University of Massachusetts Press | 2015]
 Details the Klan’s attempt to challenge Irish Catholic political power in Massachusetts and redefine the state’s public identity.

*[https://www.jstor.org/stable/j.ctt1hd19qk.11 | Mark Paul Richard | Not a Catholic Nation, University of Massachusetts Press | 2015]
 Examines Catholic grassroots resistance to Klan organizing and the sometimes violent religious conflict that followed.

*[https://www.jstor.org/stable/j.ctt1hd19qk.13 | Mark Paul Richard | Not a Catholic Nation, University of Massachusetts Press | 2015]
 Studies Klan activity in Rhode Island and its campaign against Franco-American Catholics under the banner of Americanization.


=== Regional Klan Expansion and Protestant Americanism ===

*[https://www.jstor.org/stable/j.ctv123x702.7 | David M. Chalmers | Hooded Americanism, Duke University Press | 1987 edition]
 Traces the second Klan’s revival and the development of its “comprehensive Americanism,” fraternal structure, and Protestant-centered public identity.

*[https://www.jstor.org/stable/j.ctv123x702.8 | David M. Chalmers | Hooded Americanism, Duke University Press | 1987 edition]
 Examines the early strength of the Texas Klan and its mixture of moral vigilantism, political activism, Protestantism, and anti-Catholicism.

*[https://www.jstor.org/stable/j.ctv123x702.9 | David M. Chalmers | Hooded Americanism, Duke University Press | 1987 edition]
 Studies the rapid expansion of Oklahoma Klan power and the movement’s involvement in violence, law enforcement, morality, and politics.

*[https://www.jstor.org/stable/j.ctv123x702.10 | David M. Chalmers | Hooded Americanism, Duke University Press | 1987 edition]
 Surveys Arkansas Klan growth and the organization’s use of vigilantism, racial hierarchy, and “100 percent Americanism.”

*[https://www.jstor.org/stable/j.ctv123x702.11 | David M. Chalmers | Hooded Americanism, Duke University Press | 1987 edition]
 Examines the Louisiana Klan’s notorious record and its relationship to regional politics, social conflict, and white supremacy.

*[https://www.jstor.org/stable/j.ctv123x702.12 | David M. Chalmers | Hooded Americanism, Duke University Press | 1987 edition]
 Surveys Klan activity in Mississippi and its effort to assert racial, moral, and cultural authority in towns across the state.

*[https://www.jstor.org/stable/j.ctv123x702.13 | David M. Chalmers | Hooded Americanism, Duke University Press | 1987 edition]
 Examines Georgia as the headquarters and symbolic center of the twentieth-century Klan and its fusion of ritual, religion, and nationalism.

*[https://www.jstor.org/stable/j.ctv123x702.14 | David M. Chalmers | Hooded Americanism, Duke University Press | 1987 edition]
 Studies Alabama Klan activity, including politics, vigilantism, urban influence, racial domination, and opposition to religious and ethnic outsiders.

*[https://www.jstor.org/stable/j.ctv123x702.19 | David M. Chalmers | Hooded Americanism, Duke University Press | 1987 edition]
 Explains the Klan’s mass recruitment success and the emotional, cultural, religious, and social appeals that helped it grow beyond the South.

*[https://www.jstor.org/stable/j.ctv123x702.20 | David M. Chalmers | Hooded Americanism, Duke University Press | 1987 edition]
 Traces Klan organizing in California and its recruitment of ministers, officials, and other respectable community figures.

*[https://www.jstor.org/stable/j.ctv123x702.21 | David M. Chalmers | Hooded Americanism, Duke University Press | 1987 edition]
 Examines the Klan’s extraordinary political strength in Colorado, where members gained influence from city government to the governor’s office.

*[https://www.jstor.org/stable/j.ctv123x702.22 | David M. Chalmers | Hooded Americanism, Duke University Press | 1987 edition]
 Studies the Missouri Klan and the way “Americanism” and Protestant cultural politics shaped Klan activity in Midwestern communities.

*[https://www.jstor.org/stable/j.ctv123x702.23 | David M. Chalmers | Hooded Americanism, Duke University Press | 1987 edition]
 Examines Kansas opposition to the Klan and conflicts involving law, labor, politics, religious prejudice, and public authority.

*[https://www.jstor.org/stable/j.ctv123x702.24 | David M. Chalmers | Hooded Americanism, Duke University Press | 1987 edition]
 Explores the Klan’s unsuccessful attempt to translate Protestant nativism into lasting political power in Minnesota.

*[https://www.jstor.org/stable/j.ctv123x702.25 | David M. Chalmers | Hooded Americanism, Duke University Press | 1987 edition]
 Surveys Klan politics in states including Tennessee and shows how local conditions shaped the movement’s Protestant and nationalist agenda.

*[https://www.jstor.org/stable/j.ctv123x702.26 | David M. Chalmers | Hooded Americanism, Duke University Press | 1987 edition]
 Examines the Klan’s Indiana stronghold and the fears about Catholicism, immigration, race, crime, and morality that supported its political rise.

*[https://www.jstor.org/stable/j.ctv123x702.27 | David M. Chalmers | Hooded Americanism, Duke University Press | 1987 edition]
 Studies Ohio’s enormous Klan membership and its campaigns involving politics, boycotts, parades, religious prejudice, and municipal power.

*[https://www.jstor.org/stable/j.ctv123x702.28 | David M. Chalmers | Hooded Americanism, Duke University Press | 1987 edition]
 Examines Illinois Klan growth, especially in Chicago and downstate communities, and the conflicts surrounding mass recruitment and public demonstrations.

*[https://www.jstor.org/stable/j.ctv123x702.29 | David M. Chalmers | Hooded Americanism, Duke University Press | 1987 edition]
 Explores Wisconsin Klan organizing and its attempts to make Protestant “Americanism” politically meaningful in a religiously diverse state.

*[https://www.jstor.org/stable/j.ctv123x702.30 | David M. Chalmers | Hooded Americanism, Duke University Press | 1987 edition]
 Studies Michigan Klan activity amid rapid immigration, industrialization, racial change, and Protestant anxieties in Detroit and surrounding communities.

*[https://www.jstor.org/stable/j.ctv123x702.31 | David M. Chalmers | Hooded Americanism, Duke University Press | 1987 edition]
 Examines congressional, press, and federal responses as the Klan’s growing national influence became a major political controversy.

*[https://www.jstor.org/stable/j.ctv123x702.32 | David M. Chalmers | Hooded Americanism, Duke University Press | 1987 edition]
 Explores the Klan issue at the 1924 Democratic convention and the national conflict surrounding religious intolerance and party politics.

*[https://www.jstor.org/stable/j.ctv123x702.35 | David M. Chalmers | Hooded Americanism, Duke University Press | 1987 edition]
 Examines the decentralized Florida Klan and the strong anti-Catholic environment that helped the movement grow in parts of the state.

*[https://www.jstor.org/stable/j.ctv123x702.39 | David M. Chalmers | Hooded Americanism, Duke University Press | 1987 edition]
 Studies the New Jersey Klan, Protestant religious connections, political resistance, and the conflicts that limited its expansion.

*[https://www.jstor.org/stable/j.ctv123x702.41 | David M. Chalmers | Hooded Americanism, Duke University Press | 1987 edition]
 Examines Klan organizing in New England as an effort to defend an imagined old-stock Protestant order against Catholic and immigrant influence.

*[https://www.jstor.org/stable/j.ctv123x702.45 | David M. Chalmers | Hooded Americanism, Duke University Press | 1987 edition]
 Analyzes the Klan’s opposition to Catholic presidential candidate Al Smith and its continuing use of Protestant nationalist appeals in 1928.


=== Protestant-Catholic Conflict, Education, and Local Communities ===

*[https://www.georgiaencyclopedia.org/articles/history-archaeology/ku-klux-klan-in-the-reconstruction-era/ | Jonathan M. Bryant | New Georgia Encyclopedia | October 3, 2002; updated May 4, 2026]
 Provides essential background on the first Klan's use of racial terror against African Americans and Reconstruction governments before the later movement adopted a stronger Protestant-nationalist identity.

*[https://encyclopediaofarkansas.net/entries/arkansas-traveller-ku-klux-klan-newspaper-14959/ | Kenneth C. Barnes | Encyclopedia of Arkansas | January 28, 2026]
 Examines a Klan newspaper that spread the movement's messages about race, religion, morality, politics, and American identity throughout Arkansas.

*[https://scholarworks.wmich.edu/dissertations/4253/ | Jason U. Rose | Western Michigan University | 2026]
 Examines Klan campaigns over public education and the competing definitions of Americanism advanced by Klan supporters and their opponents.

*[https://www.northerncoloradohistory.com/resources-for-a-deeper-dive-into-the-klan-in-colorado-during-the-1920s/ | Meg Dunn | Northern Colorado History | November 19, 2025]
 Compiles archival and historical resources useful for investigating the Klan's social, political, racial, and religious networks across Colorado communities.

*[https://encyclopediaofarkansas.net/entries/klan-haven-orphanage-17991/ | Kenneth C. Barnes | Encyclopedia of Arkansas | July 17, 2025]
 Describes a Klan-sponsored orphanage that demonstrates the movement's effort to present itself not only as a political organization but as a moral and benevolent social institution.

*[https://encyclopediaofarkansas.net/entries/The-Eagle-15504/ | Encyclopedia of Arkansas | Encyclopedia of Arkansas | June 16, 2023]
 Examines an Arkansas newspaper that opposed the Klan, providing evidence of public resistance to the organization's religious intolerance and political influence.

*[https://www.rmpbs.org/news/rocky-mountain-pbs/ku-klux-klan-ledgers-at-history-colorado | Brian Willie and Mark Harden | Rocky Mountain PBS | September 15, 2021]
 Uses historical membership records to demonstrate how deeply the Klan was embedded in Denver neighborhoods and ordinary civic life during the 1920s.

*[https://red.msudenver.edu/2020/remembering-denvers-deadliest-riots-a-century-later/ | MSU Denver RED | Metropolitan State University of Denver | 2020]
 Places Colorado's racial conflicts and later Klan growth in the broader context of Denver's early twentieth-century racial, social, and political history.

*[https://daytonjewishobserver.org/2020/07/john-patterson-ncr-oakwood-and-the-jewish-community/ | Dayton Jewish Observer | Dayton Jewish Observer | 2020]
 Places Klan activity in Dayton within a broader history of antisemitism and religious exclusion, showing that its definition of Protestant Americanism targeted Jews as well as Catholics.

*[https://www.northerncoloradohistory.com/noco-klan-timeline-1920s/ | Meg Dunn | Northern Colorado History | July 28, 2019]
 Provides a detailed chronology of rallies, ministers, elections, church connections, controversies, and anti-Catholic activities associated with Colorado's second Klan.

*[https://www.northerncoloradohistory.com/an-overview-of-the-ku-klux-klan-in-colorado/ | Meg Dunn | Northern Colorado History | October 18, 2018]
 Describes the rapid expansion of the Colorado Klan and its ability to convert religious and ethnic prejudice into significant political influence during the 1920s.

*[https://history.denverlibrary.org/news/rocky-mountain-american-kkks-colorado-newspaper | Brian K. Trembath | Denver Public Library | May 14, 2015]
 Examines the Klan's Colorado newspaper and how print propaganda promoted its definitions of race, morality, religion, citizenship, and “Americanism.”

*[https://stories.utahhumanities.org/item/1146 | Beehive Archive | Utah Humanities | September 16, 2007]
 Provides a concise history of Klan organizing in Utah and the tensions produced by its racial, religious, and nativist ideology.

*[https://scholarworks.wmich.edu/honors_theses/1280/ | Michael Alfonso Reynolds | Western Michigan University | 1974]
 Studies anti-Catholicism in the 1920s, including the roles of the Klan, Protestant fundamentalists, and political opposition to Al Smith.

*[https://digitalcommons.butler.edu/grtheses/24/ | Joseph M. White | Butler University | 1974]
 Studies the Indiana Klan through the Catholic press and documents hostility toward Catholics, Jews, African Americans, immigrants, and other groups defined as outside Klan Americanism.

*[https://time.com/archive/6896702/education-unconstitutional/ | TIME | TIME | April 7, 1924]
 A contemporary report on the federal ruling against Oregon’s compulsory public-school law, which the Klan supported as a major anti-Catholic political measure.

*[https://www.loc.gov/resource/gdcmassbookdig.kukluxklanastudy00meck/?sp=2&st=gallery | John Moffatt Mecklin | Library of Congress | 1924]
 A contemporary study analyzes the Klan's racial and religious prejudices, including anti-Catholicism, Protestant sectarianism, nationalism, and the social conditions behind its expansion.

*[https://www.loc.gov/item/23009705/ | Julia E. Johnsen, compiler | Library of Congress | 1923]
 A contemporary collection assembles arguments and documentation about the Klan at the height of its national power, providing valuable primary material on religion, race, citizenship, and Americanism.

*[https://texashistory.unt.edu/ark:/67531/metapth981231/m1/1/ | Tyler American | The Portal to Texas History | May 5, 1922]
 A pro-Klan Texas newspaper provides primary-source evidence of militant Protestant anti-Catholic rhetoric framed as a defense of Christianity and America.

*[https://archives-spec.unl.edu/kampus-klan/item/5239 | University of Nebraska–Lincoln Archives & Special Collections | University of Nebraska–Lincoln | September 20, 1921]
 Preserves a contemporary university response to Klan organizing and illustrates institutional debates over secret societies, religious discrimination, and citizenship.

*[https://archives-spec.unl.edu/kampus-klan/item/5228 | Lincoln Star | University of Nebraska Archives | September 20, 1921]
 A contemporary editorial provides insight into public reaction to Klan activity among university students and disputes over tolerance and American democratic values.

*[https://archivesspace.library.nd.edu/repositories/2/resources/1856 | University of Notre Dame Archives | University of Notre Dame | n.d.]
 Archival collection concerning the 1924 South Bend clash between Notre Dame students and the Klan and the wider history of anti-Catholicism in Indiana.

*[https://magazine.nd.edu/stories/the-clash-with-the-klan/ | Notre Dame Magazine | University of Notre Dame | n.d.]
 Recounts the confrontation between Notre Dame students and the Klan and places the episode within the Klan's broader anti-Catholic campaign in Indiana.

*[https://wams.nyhistory.org/primary-source/women-of-the-kkk/ | Women & the American Story | New-York Historical Society | n.d.]
 Presents primary-source material from the women's Klan, whose creed explicitly associated American institutions with Christianity as practiced by Protestant churches.

*[https://www.georgiaencyclopedia.org/articles/history-archaeology/ku-klux-klan-in-the-twentieth-century/ | New Georgia Encyclopedia | New Georgia Encyclopedia | n.d.]
 Traces the Klan from its 1915 revival through later transformations, including its white Protestant membership base, political power, racial violence, and civil-rights-era activity.

*[https://epublications.marquette.edu/dissertations/AAI3153484/ | Michael D. Jacobs | Marquette University | n.d.]
 Examines Catholic institutional and community responses to Klan organizing, propaganda, and anti-Catholic campaigns throughout the Midwest.

*[https://daily.jstor.org/how-1920s-catholic-students-fought-the-ku-klux-klan/ | JSTOR Daily | JSTOR Daily | n.d.]
 Recounts Catholic student resistance to Klan demonstrations at Notre Dame and highlights how anti-Catholicism formed a major component of Klan activism in the Midwest.

*[https://encyclopediaofarkansas.net/entries/ku-klux-klan-2755/ | Encyclopedia of Arkansas | Encyclopedia of Arkansas | n.d.]
 Surveys the second Klan in Arkansas and its efforts to influence politics, social morality, religion, race relations, and definitions of legitimate American citizenship.

*[https://encyclopediaofarkansas.net/entries/women-of-the-ku-klux-klan-4220/ | Encyclopedia of Arkansas | Encyclopedia of Arkansas | n.d.]
 Explores the women's auxiliary of the Klan and demonstrates how white Protestant women participated in the movement through politics, education, morality campaigns, and community activism.

*[https://encyclopediaofarkansas.net/entries/anti-catholicism-13501/ | Encyclopedia of Arkansas | Encyclopedia of Arkansas | n.d.]
 Surveys Arkansas anti-Catholicism and its relationship to Protestant religious leaders, nativist politics, the second Klan, and fears about Catholic influence over American institutions.

*[https://latinohistoryproject.org/teachers/primary-source-sets/racism-and-the-ku-klux-klan-1910-1940/ | Boulder County Latino History | Boulder County Latino History Project | n.d.]
 Surveys Colorado Klan ideology and activity, including white supremacy, Protestant identity, nativism, intimidation, and discrimination against Catholic and immigrant communities.


=== Women, Gender, and Protestant Nationalism ===

*[https://www.kci.go.kr/kciportal/ci/sereArticleSearch/ciSereArtiView.kci?sereArticleSearchBean.artiId=ART002925648 | Insun Kim | Women and History | 2022]
 Examines the Women of the Ku Klux Klan as active political participants who promoted white supremacy, anti-Catholicism, antisemitism, nativism, morality, and gendered nationalism.

*[https://gateway.okhistory.org/ark:/67531/metadc1612572/m1/1/ | Oklahoma Herald | Gateway to Oklahoma History | October 30, 1923]
 Reports a women’s Klan gathering described in explicitly white, American-born, Christian, Protestant, and patriotic terms.

*[https://www.ferris.edu/university-archives/finding/manuscript-collections/mss8.htm | Ferris State University Archives | Ferris State University | n.d.]
 Finding aid for Women of the Ku Klux Klan records from Michigan, including national and state pamphlets and form letters promoting nativist and anti-Catholic themes.


=== Protestant and Constitutional Opposition to the Klan ===

*[https://www.jta.org/archive/omaha-methodist-minister-denounces-ku-klux-klan | Jewish Daily Bulletin | Jewish Telegraphic Agency | October 11, 1926]
 Reports Methodist minister J. L. Beebe’s denunciation of the Klan and his criticism of its political control and coercive methods.

*[https://www.jta.org/archive/methodist-minister-in-omaha-denounces-klan | Jewish Daily Bulletin | Jewish Telegraphic Agency | October 4, 1926]
 Reports Methodist pastor Edgar Merrill Brown’s resignation from the Klan and his description of its coercive practices as undemocratic, un-Christian, and un-American.

*[https://gateway.okhistory.org/ark:/67531/metadc2536730/m1/4/ | Watonga Herald | Gateway to Oklahoma History | October 30, 1924]
 Presents anti-Klan arguments for religious liberty, constitutional government, equal protection, and opposition to political coercion based on race or creed.


=== Primary Sources and Contemporary 1920s Evidence ===

*[https://www.jstor.org/stable/j.ctt1k857ng.4 | Kelly J. Baker | Gospel According to the Klan, University Press of Kansas | 2011]
 Examines how the revived Klan fused Protestant religious language, national mythology, race, and claims about authentic American identity.

*[https://www.jstor.org/stable/j.ctt1k857ng.5 | Kelly J. Baker | Gospel According to the Klan, University Press of Kansas | 2011]
 Analyzes the Klan’s effort to define itself as a Protestant organization and to place its rituals and ideology within a Christian framework.

*[https://www.jstor.org/stable/j.ctt1k857ng.6 | Kelly J. Baker | Gospel According to the Klan, University Press of Kansas | 2011]
 Explores the Klan’s fusion of Christianity, the American flag, “100 percent Americanism,” and a restrictive conception of national belonging.

*[https://www.jstor.org/stable/j.ctt1k857ng.7 | Kelly J. Baker | Gospel According to the Klan, University Press of Kansas | 2011]
 Examines masculine religious ideals in Klan propaganda and the movement’s portrayal of Klansmen as defenders of Christianity, morality, and nation.

*[https://www.jstor.org/stable/j.ctt1k857ng.8 | Kelly J. Baker | Gospel According to the Klan, University Press of Kansas | 2011]
 Shows how the Klan connected Protestant morality, white womanhood, marriage, motherhood, and racial hierarchy to its nationalist program.

*[https://www.jstor.org/stable/j.ctt1k857ng.9 | Kelly J. Baker | Gospel According to the Klan, University Press of Kansas | 2011]
 Studies how Klan publications linked whiteness, Protestantism, immigration restriction, and ideas about who could qualify as fully American.

*[https://www.jstor.org/stable/j.ctt1k857ng.10 | Kelly J. Baker | Gospel According to the Klan, University Press of Kansas | 2011]
 Uses the Notre Dame confrontation to examine anti-Catholicism and the Klan’s claim that Protestantism was essential to American national identity.

*[https://www.jstor.org/stable/j.ctt1k857ng.11 | Kelly J. Baker | Gospel According to the Klan, University Press of Kansas | 2011]
 Places the Klan within broader American religious history and evaluates how privilege, Protestant identity, race, and nationalism reinforced one another.

*[https://gateway.okhistory.org/ark:/67531/metadc2536730/m1/1/ | Watonga Herald | Oklahoma Historical Society | October 30, 1924]
 Preserves competing contemporary claims about Protestant clergy and Klan membership, illustrating the political importance of asserting or disputing religious support for the organization.

*[https://gateway.okhistory.org/ark:/67531/metadc1612641/m1/4/ | Oklahoma Herald | Oklahoma Historical Society | November 6, 1923]
 Records Protestant criticism of the Klan and is important evidence that the organization could not legitimately claim to speak for Protestant Christianity as a whole.

*[https://gateway.okhistory.org/ark:/67531/metadc1612542/m1/3/ | Oklahoma Herald | Oklahoma Historical Society | January 30, 1923]
 Reports Klan support for a Methodist congregation and rhetoric favoring Protestant churches and public schools, illustrating its attempt to cultivate religious respectability.

*[https://gateway.okhistory.org/ark:/67531/metadc1612672/m1/1/ | Oklahoma Herald | Oklahoma Historical Society | October 24, 1922]
 Reports both Klan activity involving a Methodist congregation and criticism from Protestant organizations, illustrating that Protestant responses to the Klan were divided rather than uniform.

*[https://gateway.okhistory.org/ark:/67531/metadc1612672/m1/4/ | Oklahoma Herald | Oklahoma Historical Society | October 24, 1922]
 A contemporary report records Klan rhetoric connecting membership with Protestant identity while portraying Catholicism as a political and cultural threat.

*[https://gateway.okhistory.org/ark:/67531/metadc1612548/m1/1/ | Oklahoma Herald | Oklahoma Historical Society | August 22, 1922]
 Provides primary-source evidence of the intensely anti-Catholic religious environment in which the second Klan promoted itself as a defender of Protestant America.

*[https://oregonnews.uoregon.edu/lccn/sn90066132/1922-08-10/ed-1/seq-2/ocr/ | Capital Journal | Historic Oregon Newspapers | August 10, 1922]
 Presents contemporary criticism distinguishing the Reconstruction Klan from its twentieth-century revival and focusing particularly on the newer organization's anti-Catholicism.

*[https://oregonnews.uoregon.edu/lccn/sn96088115/1922-07-30/ed-1/seq-16/ocr/ | Morning Register | Historic Oregon Newspapers | July 30, 1922]
 A pro-Klan editorial explicitly links the organization with Christian religion, Americanism, and religious instruction in public life, providing direct evidence of the movement's Protestant-nationalist rhetoric.=== Religion, Protestantism, and Klan Ideology ===

*[https://gateway.okhistory.org/ark:/67531/metadc2414012/m1/1/ | The Jenks News | Oklahoma Historical Society | July 7, 1922]
 A contemporary Klan statement declared support for Protestant religion, church-state separation, public schools, and other principles it presented as essential to Americanism.

*[https://gateway.okhistory.org/ark:/67531/metadc1612665/m1/1/ | Oklahoma Herald | Oklahoma Historical Society | April 11, 1922]
 A contemporary Klan proclamation explicitly associates the organization with the defense of Protestant religion, revealing how closely its public identity linked religion and nationalism.


=== Archives, Manuscripts, and Membership Records ===

*[https://archivesspace.williams.edu/repositories/4/archival_objects/107597 | Chapin Library | Williams College | 1925–1929]
 Preserves Klan minutes and administrative forms from Presque Isle, Maine, providing local evidence from a state where Protestant-Catholic conflict was central to Klan politics.

*[https://findingaids.library.upenn.edu/records/UPENN_RBML_PUSP.MS.COLL.1244 | University of Pennsylvania Libraries | Philadelphia Area Archives | 1924–1929]
 Documents the Altoona Klan’s correspondence, election work, demonstrations, publications, and internal administration during the 1920s.

*[https://5008.sydneyplus.com/HistoryColorado_ArgusNet_Final/Portal/Portal.aspx?component=AAFG&record=33e1178b-eb4a-4731-a1f2-12272276ea15 | History Colorado | History Colorado Collection | 1920s]
 A Denver membership ledger provides direct evidence of the Klan’s penetration into ordinary civic and professional life during the 1920s.

*[https://indianahistory.org/wp-content/uploads/indianapolis-ku-klux-klan-letters-and-papers-1925.pdf | Indiana Historical Society | Indiana Historical Society | 1925]
 A manuscript guide to Indianapolis Klan correspondence and papers documenting the organization during the height and beginning decline of its Indiana influence.

*[https://archives.libraries.rutgers.edu/repositories/11/resources/743 | Bernard Bush Collection | Rutgers University Libraries | n.d.]
 A major archival collection documenting New Jersey Klan activity, Protestant churches, immigration, Prohibition, elections, Catholics, Jews, and African Americans.

*[https://www.fortlewis.edu/finding_aids/KKK.shtml | Center of Southwest Studies | Fort Lewis College | n.d.]
 Finding aid for the Pine River Klan No. 69 in Bayfield, Colorado, preserving organizational records from the Klan’s 1920s peak.

*[https://www.pa.gov/agencies/phmc/pa-state-archives/research-online/research-guides/wpa-and-new-deal-records/wpa-and-new-deal-records-rg-25-rg-52 | Pennsylvania State Archives | Commonwealth of Pennsylvania | n.d.]
 Describes extensive Pennsylvania Klan records, including correspondence, membership material, financial accounts, and organizational documents from the 1920s.


=== Museums, Public History, Religion, and Broader Klan Context ===

*[https://www.history.com/articles/ku-klux-klan | HISTORY.com Editors | HISTORY | October 29, 2009; updated November 4, 2025]
 Surveys all three major eras of Klan activity, including the second Klan's expanded targeting of Catholics, Jews, immigrants, and others outside its conception of white Protestant America.

*[https://www.history.com/articles/kkk-terror-during-prohibition | Becky Little | HISTORY | January 15, 2019; updated May 28, 2025]
 Explains how the Klan used support for Prohibition to connect Protestant moral reform with hostility toward Catholics, immigrants, and other groups portrayed as insufficiently American.

*[https://onlinelibrary.wiley.com/doi/10.1111/johs.12495 | Chamberlain | Wiley | 2025]
 Compares the Klan with other nativist fraternal organizations and examines their shared promotion of white Protestant values, anti-Catholicism, public schooling, and restrictive definitions of Americanism.

*[https://www.smithsonianmag.com/blogs/national-museum-american-history/2021/05/26/when-watchmen-were-klansmen/ | Smithsonian National Museum of American History | Smithsonian Institution | May 26, 2021]
 Explores historical evidence connecting Klan membership with civic authority and demonstrates how the movement could overlap with respected community institutions.

*[https://www.smithsonianmag.com/history/history-black-catholics-in-america-180969271/ | Matthew J. Cressler | Smithsonian Magazine / Zócalo Public Square | June 7, 2018]
 Places Black Catholic history within overlapping histories of racism and anti-Catholicism, including the Klan's hostility toward Catholic communities.

*[https://voices.uchicago.edu/religionculture/2017/06/26/the-klan-white-christianity-and-the-past-and-present-a-response-to-kelly-j-baker-by-randall-j-stephens/ | Randall J. Stephens | Religion & Culture Forum, University of Chicago | June 26, 2017]
 Uses Klan history and material culture to examine how white Protestant identity, Christianity, nationalism, and racial exclusion interacted in American history.

*[https://www.jstor.org/stable/j.ctt1hd19qk | Mark Paul Richard | University of Massachusetts Press | 2015]
 Studies anti-Catholic Klan activism across New England and shows how battles over religion became struggles over who counted as authentically American.

*[https://www.splcenter.org/resources/reports/essay-ku-klux-klan/ | David Chalmers | Southern Poverty Law Center | January 26, 2010]
 Provides a broad historical account of the Klan's evolution, ideology, organizational methods, political influence, and changing forms of white supremacist activism.

*[https://www.latimes.com/archives/la-xpm-1991-09-01-bk-2279-story.html | Barbara Ehrenreich | Los Angeles Times | September 1, 1991]
 Reviews Kathleen Blee's research on female Klan members and the social networks, Protestant respectability, racial ideology, and community activism that helped sustain women's participation.

*[https://time.com/archive/6805257/religion-presbyterians-v-jim-crow/ | TIME | TIME | May 13, 1957]
 Reports a Presbyterian challenge to racial segregation and organizations such as the Klan, illustrating conflicts within Protestant Christianity over race and white supremacy.

*[https://utc.pressbooks.pub/afamhist/chapter/the-role-of-religion-in-the-civil-rights-movement/ | University of Tennessee at Chattanooga | University of Tennessee at Chattanooga | n.d.]
 Includes discussion of the Klan's use of Christianity and Protestant identity alongside the very different religious arguments and institutions mobilized by the civil-rights movement.

*[https://journals.ku.edu/amsj/article/view/3133 | American Studies | University of Kansas | n.d.]
 Examines later Klan ideological transformation as some organizations moved away from older “Christian Americanism” toward more explicitly revolutionary white-power and Christian Identity politics.

*[https://www.splcenter.org/resources/reports/ku-klux-klan-history-racism/ | Southern Poverty Law Center | Southern Poverty Law Center | n.d.]
 Traces the Klan's development from Reconstruction through later twentieth-century groups, emphasizing continuity and change in its racism, antisemitism, and extremist politics.

*[https://www.smithsonianmag.com/history/suffrage-civil-rights-war-and-puppets-when-and-why-americans-have-marched-washington-180961809/ | Smithsonian Magazine | Smithsonian Institution | n.d.]
 Includes the enormous 1925 Klan march in Washington, an important example of the movement publicly displaying its white Protestant nationalist identity at the national level.

*[https://www.smithsonianmag.com/smart-news/why-racism-flourished-under-prohibition-180967406/ | Smithsonian Magazine | Smithsonian Institution | n.d.]
 Explores connections among Prohibition, moral regulation, nativism, and the Klan's appeal to white Protestant Americans who viewed alcohol and immigration as cultural threats.

*[https://americanhistory.si.edu/collections/object/nmah_1121405 | National Museum of American History | Smithsonian Institution | n.d.]
 Uses a surviving Klan hood to interpret the second Klan and the movement's public presence during a period of mass membership and political influence.

*[https://www.readex.com/blog/religion-and-rise-second-ku-klux-klan-1915-1922-kelly-j-baker | Kelly J. Baker | Readex | n.d.]
 Explains how Klan recruiters incorporated Protestant imagery, ministers, churches, and religious language into a broader program of racial and national exclusion.

*[https://academic.oup.com/sf/advance-article-abstract/doi/10.1093/sf/soaf041/8107670 | Social Forces | Oxford Academic | n.d.]
 Places historical Klan activity among movements that mobilized forms of Christian nationalism, providing a broader framework for examining relationships among religion, race, politics, and national identity.

*[https://www.nps.gov/people/mary-mcleod-bethune.htm | National Park Service | National Park Service | n.d.]
 Documents Bethune's civil-rights and voter-registration work, including threats from the Klan, and provides context for conflicts between Black political activism and white supremacist intimidation.

*[https://home.nps.gov/articles/000/wwi-depression-new-deal.htm | National Park Service | National Park Service | n.d.]
 Places the second Klan within the interwar resurgence of nativism and discrimination directed against Americans regarded as nonwhite, immigrant, or non-Protestant.

*[https://www.cambridge.org/core/journals/church-history/article/no-place-is-so-dear-to-my-childhood-evangelicalism-nostalgia-and-the-history-of-an-american-hymn/3C306BA888824ED662840EBB4FEE8AAD | Church History | Cambridge University Press | n.d.]
 Traces the cultural life of an American Protestant hymn, including its appropriation by the Klan, illustrating how familiar religious culture could become intertwined with white Protestant nationalism.

*[https://www.kellyjbaker.com/writing/gospel-according-to-the-klan/ | Kelly J. Baker | Author Website | n.d.]
 Summarizes Baker's research into how the second Klan appealed to Protestant Americans by presenting white supremacy and nationalism through religious language, rituals, and moral claims.

*[https://www.kellyjbaker.com/?p=452 | Kelly J. Baker | Author Website | n.d.]
 An excerpt examines founder William J. Simmons and the religious vision behind the reborn Klan, emphasizing how Protestant symbolism was built into the movement from its revival.

*[https://www.adl.org/resources/backgrounder/christian-identity-movement | Anti-Defamation League | Anti-Defamation League | n.d.]
 Explains the later Christian Identity movement and its connections with parts of the racist right, useful for distinguishing that theology from the Protestant nationalism of the 1920s Klan.