The Muller mss., 1910-1967, consists of the papers of Hermann Joseph Muller, 1890-1967, geneticist and Nobel prize laureate, including correspondence; writings and reprints; research and data from his work as well as from his students and colleagues; materials related to conferences; and work with various professional organizations.
The Williams, K.P. mss., 1820-1958, consists of letters and papers of Kenneth Powers Williams, 1887-1958, professor of mathematics at Indiana University and author of Lincoln Finds a General.