The Vonnegut mss. II, 1965-2002, consists of letters of novelist Kurt Vonnegut, Jr., 1922-2007, written to his youngest daughter, artist Nanette (Nanny) Vonnegut, 1954- .
The Leiber, F. mss. II, ca. 1932-1970, consist of correspondence, writings, drawings, and photographs of science fiction writer Fritz Leiber, 1910-1992.
The Harris, L. mss. consists of materials related to the writing and publication of Upton Sinclair, American Rebel (Crowell, 1975), by author Leon A. Harris, 1926-2000.
The Hastings, L. mss., 1904-1957, consists primarily of letters from author Elizabeth Jane Miller Hack, 1878-1961, to Lyndona Hastings Rutherford, 1891-1989.
The Stedman mss., 1863-1922, are the letters and writings used as extra-illustrations for the two volumes of Life and Letters of Edmund Clarence Stedman by Laura Stedman and George M. Gould, New York, Moffat, Yard and Company, 1910.