Correspondence files and financial papers. The files include correspondence, contracts, clippings and programs, ledgers and financial accounts, submission books, and calendars and memorandum books. Authors for whom there are extensive files include the following: Truman Capote; Patrick Dennis; John Dos Passos; Lloyd C. Douglas; John Hersey; Alice Tisdale Hobart; Paul Horgan; William Humphrey; Frances Parkinson Keyes; Margaret Mitchell; Alan Paton; Kenneth Roberts; Lillian Smith; John Steinbeck; George R. Stewart; Ben Ames Williams; and Kathleen Winsor

Manuscript materials which include correspondence, business papers, composition scrapbooks and musical scores; books; clippings; records; and photographs.

Dawn Powell (1896-1965) was an American author of novels, plays, and short stories. The collection includes address books, appointment books, books, clippings, correspondence, diaries, ephemera, family materials, manuscripts, notes, notebooks, photographs, programs, research files, reviews, scrapbooks, sketches and drawings.

Manuscripts of musical scores, memorabilia and photograph. Folder 1 of the collection includes a general index (d. March 1945), photograph, awards, 5 citations, and a biographical sketch. His musical compositions (folders 2-26) are divided in three major categories: sacred and non-sacred vocal music, and musical compositions for instruments. His sacred choruses for mixed voices has been highly praised. His non-sacred vocal music seems to deal with children, nature, and poetic topics; also included are arrangements of Stephen Foster's songs for choruses. Among his musical compositions for instruments are some with Caribbean or West Indian themes

Letters, notes, programs, photographs, and printed materials. The collection is comprised primarily of handwritten correspondence between Reiner and notable music figures including Samuel Barber, Leonard Bernstein, Aaron Copland, Lukas Foss, Darius Milhaud, Arthur Nikisch. Arnold Schoenberg, Richard Strauss, Igor Stravinsky, and Leo Weiner. Also of note, letters from writer and conductor Gian Francesco Milpiero and his wife Auna detailing wartime conditions in Italy (1946).

Gloria Coates is an American composer who studied at Columbia University with Jack Beeson and Otto Luening. These papers include correspondence, concert programs and business records related to her activities as director of the German-American Contemporary Music Series in Munich from 1970 through 1986.

Research materials relating to the creation and installation of sound sculptures by Max Neuhaus.

Ulysses Kay (1917-1995) was a noted twentieth-century American composer. The collection includes audio reels, biographical materials, correspondence, diaries, phonograph records, photographs, programs, and scores.

Correspondence, manuscript, and printed materials of Kees. There are fourteen letters from Kees to Herbert Cahoon, twelve letters from James T. Farrell to Kees, the manuscript of Kees' THE LAST MAN, and announcements and clippings by and about Kees.

The William Hobart Mitchell Papers are comprised of five series: Correspondence, Music Career, Writings, Personal Papers and Teaching Materials. The largest body of correspondence contains letters written between Mitchell and his first wife, Claramary (Clerky), that document their courtship in the mid 1930s as well as William's time in the Civilian Public Service unit during World War II. The majority of the letters relate to William's musical tours of universities and colleges throughout the United States between the late 1940s and the early 1960s. This group of letters shares William's experiences during his travels as well as documenting Claramary's everyday life in New York City and later in Rye, New York.