Collection consists of minutes and reports regarding the separation of the Department of History and Government at the University of Buffalo into two departments in 1962; a history of the Department of History, 1948-1967, covering Horton's tenure as chairman; and programs of the local Phi Beta Kappa chapter, 1938-1952 (incomplete), with a history of the chapter by Horton. Also included are materials concerning Horton's active involvement with the Niagara Frontier Defense Committee (1940-1941) and a genealogy of the Horton family.