The Diane Di Prima letters and poetry collection consists of thirty letters and a collection of poems, all written by American poet, Diane Di Prima. Diane Di Prima's letters, spanning the dates 1962-1971, are written to her parents, Frank and Emma Di Prima. The collection of poetry, titled the Freddie Poems, consists of poems dated between 1957–1966.

Three letters and four poems written by American poet Edward Dorn.

One typed card, one typed letter, and fifteen typed poems written by American poet Larry Eigner.

The En Passant Archive, spanning the dates 1970 – 1983, is the archive of the little poetry magazine En Passant, edited by James Costello in Wilmington, Delaware. The 1.3 linear feet of material in the collection consists of letters from contributors, administrative correspondence, little magazines, including twelve issues of En Passant, and the manuscripts of most of the thirteen issues of the magazine published between 1975 and 1983.

Letters or cards addressed by poet Abbie Huston Evans to Pulitzer Prize winner Odell Shepard. Additionally, the collection has three poems written by Evans and a letter to Shepard from Jean Schiesser.

The Toby Olson Letters to Carl Thayler collection consists of 119 letters from American poet and Temple University professor, Toby Olson, to the poet Carl Thayler. Dating from 1967 to 1983, these detailed letters treat a variety of literary and personal matters and reveal the close friendship shared by Olson and Thayler.

The Thomas Parkinson papers consist of typescripts and manuscripts of poetry and prose by Parkinson, Parkinson's correspondence, periodicals and clippings related to Parkinson's work, and four original pen-and-ink drawings, probably created by Parkinson's wife, Ariel. The materials were created circa 1957-1972.

This collection of American writer Charles Plymell's manuscripts contains manuscripts for poems, fiction, and essays written by Plymell during the 1970s, as well as a small number of manuscripts of the work of other poets.

This small collection of letters and miscellaneous items from American poet Muriel Rukeyser to David Posner reflects their shared interests in poetry and spans the dates of 1942 to 1944.

The Louis Untermeyer papers consist of five linear feet of manuscript material abandoned by Untermeyer when he sold his Adirondack home, Stony Water, around 1970. Dating from 1902 through 1972, with the bulk of the papers dating 1912–1935, the collection is composed of correspondence, proofs, lists, scrapbooks, notes, photographs, programs, announcements, lectures, anthologies, poems, reviews, essays, and a bookplate.