The Bertha Sanford Dodge Papers include letters to David Kaser regarding manuscript of her book, Plants that Changed the World. There are also a prospectus and sample chapters of this study, originally called The Plant Hunters and a typescript final draft of Plants that Changed the World, including manuscript revision and galley proofs, dated August 20, 1958.

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 John Rison Fordyce Papers consists primarily of material towards a history of the DeSoto expedition, entitled "Trailing DeSoto." In addition to chapter drafts, the collection contains typed and autograph notecards, various maps, and a scrapbook.

The Isabella Gardner Papers contain manuscript and editorial material toward most of her books drafts of individual poems as well as letters to and from various editors, friends, and family.

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.