The Donald Finkel Papers include his extensive research materials, journals, notes, and heavily revised manuscripts. A large collection of editorial matter toward all of his books and a small, yet revealing professional correspondence with editors and literary colleagues completes the Finkel Papers.

The Charles Guenther Papers includes correspondence, 1964-1970, principally between Guenther and Washington University library officials concerning the placing of Guenther's literary materials. Also included are original poems and poetry translation from the French and German and reprints or copies of selected published articles on E.E. Cummings, Pierre Francois Regnier, an address on poetry given at St. Louis University, and miscellany.