Correspondence, speeches, articles, clippings, printed matter, and other papers relating to Allen's public career, especially his terms as governor of and U.S. senator from Kansas. Documents Allen's business activities; his work on behalf of Great Lakes-St. Lawrence Tidewater Association, Near East Relief, and Save the Children (U.S.); and family affairs. Subjects include the debate between Allen and Samuel Gompers, Industrial Workers of the World, Kansas Court of Industrial Relations, the Ku Klux Klan, National Nonpartisan League, Republican Party politics, and the Republican National Convention in 1920. Correspondents include Will H. Hays, Harold L. Ickes, Alfred M. Landon, Arthur H. Vandenberg, William Allen White, and Leonard Wood.