The Colfax mss., 1853-1884, consists of the papers of South Bend, Indiana, newspaperman, speaker of the House of Representatives, and vice-president of the United States Schuyler Colfax, 1823-1885.
The Cooper mss., 1921-1935, consists of the papers of newspaperman Kent Cooper, 1880-1965, including correspondence of Kent Cooper chiefly with journalists, releases for newspapers, and newspaper clippings.
The Lyon mss., 1956-1963, consist of research, correspondence, photographs, and artwork surrounding Success Story: The Life and Times of S. S. McClure (New York, 1963), by Peter Lyon, 1915-1996, author.
The McClure mss. IV, 1884-1922, consists of letters to editor S. S. (Samuel Sidney) McClure, 1857-1949, and to a few of his associates, from editors, artists, journalists, politicians, and literary figures concerning articles for McClure's Magazine.