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 William H. Gass Papers consist largely of his own manuscript material: manuscripts and proof material toward his books, drafts of various stories, essays, and reviews, interviews, and a miscellaneous assortment of notes and other materials. Also present is a substantial amount of professional correspondence, primarily with universities, magazines, and publishers, as well as with his colleagues in academia and in the literary community.

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.

The Alexander Trocchi Papers include manuscripts of his novels, stories, essays and poems, the extant archives of Merlin, most of his manuscripts and correspondence concerning the Sigma Project, material relating to a large number of projects Trocchi was involved with in the 1960’s, and his journals and notebooks. The Trocchi Papers also house an extensive collection of magazines and ephemera, including material relating to the International Situationist movement.