The Elias Wilentz Collection contains manuscripts by poets such as Ted Berrigan, Joel Oppenheimer, and Jonathan Williams; correspondence; photographs; and miscellaneous items.

Helen Adam (1909-1993) was a poet and visual artist of the San Francisco Renaissance. Born in Scotland, she garnered acclaim at a young age for her collection of poems titled The Elfin Peddlar. After attending Edinburgh University for two years Helen and her sister and frequent collaborator Pat Adam worked as journalists in London before moving to the United States with their mother in 1939. The family made their way to San Francisco, at the beginning of what would become the San Francisco Renaissance. Here her artistic career flourished, and she published a number of poetic and visual works. Following the success of her play San Francisco's Burning, the sisters moved to New York City where they remained for the rest of their lives. The material in the Helen Adam Collection contains over 100 collages, 119 scrapbooks, manuscripts for several books of poetry and individual poems as well as production material from Adam's dramatic work such as San Francisco's Burning and Daydream of Darkness. Also included are personal documents, artwork, and ephemera.

The Jargon Society Collection features an extensive collection of materials relating to the long and influential life of the press, including numerous manuscripts and correspondence from such American and English poets as Charles Olson and Robert Duncan, production and promotional materials, financial records, and photographs as well as the manuscripts and personal papers of Jonathan Williams.

The Robert Kelly Collection contains an extensive collection of Kelly's autographed and typed manuscripts and notebooks (approximately 58,000 pages); over 4,000 letters to Kelly from such writers as Cid Corman, Robert Creeley, Robert Duncan, Ted Enslin, Clayton Eshleman, Charles Olson, Jonathan Williams, and Diane Wakoski; and copies of many of Kelly's letters to others.