Douglas Stuart Moore (1893-1969) was an American composer, educator, and author. His best known works include the operas The Devil and Daniel Webster (1937-1939), The Ballad of Baby Doe (1953-1956), and Giants in the Earth (1949-1950), which won the Pulitzer Prize for Music in 1951. The papers include clippings, correspondence, course and lecture materials, librettos, photographs, programs, publicity materials, recordings, and scores.

Belmont (1878-1979) was an American actress and a prominent public figure. The collection includes correspondence, subject files, and personal materials.

Correspondence, manuscripts, photographs, memorabilia, business records, book catalogs and other printed materials of Louis and Marguerite Cohn and their customers, associates and friends. Correspondents include Stephen Vincent Benʹet, Robert Frost, T.S. Eliot, and Marianne Moore, all among the authors represented in the Crown Octavos series published by the House of Books; there are also manuscripts, proofs and correspondence with printers for this series. Other correspondents include Cyril Connolly, W. Somerset Maugham and Tom Stoppard. Also in the collection are letters and manuscripts from the stock of the shop; notable among these are a series of Graham Greene letters and pages from an autograph book which contains entries from many turn of the century American Literary figures. The collection also include the personal memorabilia of the Cohn and Arnold families. Louis Cohn's participation in World War I as an officer in the French Army is recorded in photographs, documents and memorabilia. Marguerite's childhood collections, among them many early greeting cards, are also included.

The collection consists of the editorial and production archives of Vanguard Press: correspondence, manuscripts, contracts, memoranda, galley proofs, photographs, clippings, and printed materials. The correspondence and editorial files contain a wealth of detailed information about individual authors and the growth and development of the Press. Among the cataloged correspondents are: Nelson Algren, Saul Bellow, Stephen Vincent Benét, William Rose Benét; Phyllis Bottome; Pierre Boulle; Jocelyn Brooke; Cyril Connolly; A.J. Cronin; Nigel Dennis; John Dewey; Max Eastman; James T. Farrell; Vardis Fisher; Richard Garnett; Theodor Seuss Geisel; Louis Golding; Paul Goodman; Horace Gregory; Geoffrey Grigson; Lillian Hellman; William Heyen; Harold L. Ickes; Christopher Isherwood; Alfred Kazin; Philip Lamantia; Sinclair Lewis; Emanuel Litvinoff; Dwight Macdonald; Archibald MacLeish; Marshall McLuhan; Thomas Mann; Edgar Lee Masters; H. L. Mencken; William Meredith; Joyce Carol Oates; Katherine Anne Porter; Barbara Pym; William Sansom; William Saroyan; Ramon J. Sender; Upton Sinclair; Rex Stout; Edith Sitwell; Paul Theroux; Lionel Trilling; Harry S. Trumam; Louis Untermeyer; Eudora Welty; Richard Wilbur; and Thornton Wilder. There are some manuscripts by Bellow; Bottome; Boulle; Farrell; Grigson; Litvinoff; MacDonald; Oates; John Cowper Powys; Arthur Schlesinger, Jr.; Patrick Tanner; William Targ; Theroux; and Sitwell.