The Reutersvärd, Oscar mss., 1980-2000, consist of original drawings of impossible figures and correspondence from/about artist Oscar Reutersvärd, mainly with physicist Bruno Ernst.
The Pyle, W. mss. 1925-2006, consists of letters, original animation drawings, and works of art relating to Willis Pyle's career as an animator and artist.
The Hartley, Duncan mss., 1959-2001, consists of Heart's Needle, a series of photographs by Duncan Hartley, 1942-, in memory of poet W.D. Snodgrass, 1926-2009.
The Messick mss. XI, 1948-1980, consist of original pen and ink drawings of the Brenda Starr newspaper comic strip by Dale Messick, 1906-2005, cartoonist. All stories interrelate with those found in Messick mss. IX.