Correspondence and manuscripts of many authors who were asked to contribute to the proposed anthology, as well as letters from publishers to whom the project had been offered. Among the cataloged correspondents are: John Ashbery, W.H. Auden, Lawrence Ferlinghetti, David Ignatow, W.S. Merwin, Ron Padgett, and May Sarton.

The collection documents the scholarship and writing of John Eugene Unterecker, a poet, biographer of the poet Hart Crane, and professor of English. The majority of the collection is composed of correspondence and manuscripts. Materials date from 1961 to 1987.