Professor and university president. Correspondence (1902) related to Buchanan’s attempts to have power and water companies established in Norman, Oklahoma; lecture notes (n.d.) for history classes; draft copies (n.d.) of his book, The History of Oklahoma; lecture notes (n.d.) of Katherine Buchanan, a teacher at University High School, Norman, Oklahoma; papers (1912) relating to the history of the University of Oklahoma; personal correspondence and legal papers (1893–1927) of the Buchanan family; printed propositions, journals, and committee reports (1906–1907) to the Oklahoma Constitutional Convention; guides (n.d.) for the study and teaching of English; and Delta Kappa Gamma bulletins (1936–1937).