Two letters written by W. H. Auden to Reed Whittemore.

Six postcards and two typescript letters written by Cid Corman to Richard Aaron, dated between 2000 and 2001.

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.

This collection consists of the Carl Sandburg files kept by BMI president and radio pioneer Carl Haverlin (1899-1985) spanning the years 1909-1964. During Haverlin's years at BMI he developed a close working relationship and friendship with Carl Sandburg.

A collection of materials related to American playwright and screenwriter David Mamet, assembled by theater collector and book dealer Richard Hoffman.

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.

The David Louis Posner Papers span the dates 1923-1957, and consist of one linear foot of photographs, school records, letters, essays, invoices, rare book catalogs, ephemera, and poetry, prose, and play scripts. Though small and clearly incomplete as a record of Posner’s life, the collection provides good biographical and literary content for study of this American poet.

Helen Ann Raiber (1926-1971) was a writer born and raised in Pennsylvania. Throughout her life, she wrote letters to writers and other artists whose work she admired. The Helen Ann Raiber papers consist of an album of letters she received from authors and artists, a journal with a story she wrote as a child, and a scrapbook containing her published poems and articles.

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.

This collection contains correspondence and literary manuscripts exchanged between twentieth century American poet and scholar W. D. Snodgrass and twentieth century American writer and scholar Jerome Mazzaro.

Correspondence between twentieth century American writers W. D. Snodgrass and Daniela Gioseffi.

The Wilbert Snow letters to Homer E. Woodbridge were written by twentieth century American poet and scholar Wilbert Snow to Homer E. Woodbridge, both of whom were professors at Wesleyan University in Middletown, Connecticut.

One letter handwritten by Stephen Spender to Reed Whittemore.

Fifty-six letters from American poet Sara Teasdale (1884-1933) to the American poet and critic Joyce Kilmer (1886–1918) and his wife, poet Aline Kilmer (1888-1941) written between 1912 and 1932.

Forty-three letters from American poet Sara Teasdale to Orrick Johns, friend, fellow poet, and editor, as well as one letter to Teasdale from Wilfred Funk, author, poet, and famed dictionary publisher.

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.

The Christopher Ward papers record the career of popular early 20th century Delaware author Christopher Ward (1868-1943). The papers comprise manuscript drafts, typescripts, poetry, correspondence, clippings, and scrapbooks, and reflect Ward's career as a professional author during the latter half of his life.

Spanning the dates 1961-1968, the papers of American Beat poet John Wieners provide a chronologically and thematically fragmented, yet detailed, glimpse of his life. This small collection includes sixteen letters to Diane Di Prima, Alan Marlowe, and Ed Sanders; the manuscript of a play, two journals, and fourteen leaves of poetry.