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

Correspondence, manuscripts, photographs, and printed materials of Lamont. Letters from George Santayana (1863-1952), with Lamont and others, a few early manuscripts, interviews and other notes on Santayana, and general correspondence about him. A series of letters from John Dewey to Lamont, discussing his ideas on humanism and religion. Extensive correspondence with the family of John Masefield including approximately 100 letters from Judith Masefield to Lamont, primarily written shortly after the death in 1967 of her father the poet John Masefield, and dealing with his life and work. Also, a few of her own writings; a number of the letters are descriptive of historical England and her concern for contemporary events. Among the letters from other family members are fifteen from Lamont's nephew, Jack Masefield, and 53 from his cousin Sir Peter G. Masefield, 1970-1983, conveying news about Judith as well as interest in the publication of John Masefield's letters from the World War I years and their continuing appreciation of Lamont's work on Masefield. There is discussion on the publication of Masefield's letters to Corliss' mother, Florence Lamont, printed in 1979.

Personal and professional papers of Stedman, including correspondence, letter books, diaries, poetry manuscripts, scrapbooks, photographs, and genealogical materials for the Stedman and Dodge families. Correspondence and manuscripts of his mother, Elizabeth Clementine Dodge Stedman Kinney (1810-1889), poet and diarist, and of his granddaughter, Laura Stedman Gould (1881-1941), author and editor. Also, editions of Stedman's LIBRARY OF AMERICAN LITERATURE including printed materials relating to the marketing; and an album of Civil War photographs by Mathew Brady, inscribed by the photographer to Laura H.W. Stedman as well as additional loose photographs by Brady.

The collection includes correspondence from Konstantin Balḿont, Nikolaĭ Evreĭnov, Zinaida Gippius, Georgiĭ Grebenshchikov, Vasiliĭ Maklakov, Sergeĭ Potresov and Nadezhda Teffi. There is one letter each from Boris Bakhmeteff, Vera Bunina, Aleksandr Grechaninov, Aleksandr Kuprin and Alekseĭ Tolstoĭ. The manuscripts include poems and a play scenario by Nadezhda Teffi as well as Roshchina-Insarova's autobiographical essays and article about Sergeĭ Lifar.́ In addition, there are three scrapbooks containing clippings and programs of Roshchina-Insarova's performances, and approximately 40 photographs of her.

This collection includes nine letters of Ralph Waldo Emerson as well as letters of Louis Agassiz, Amos Bronson Alcott, Oliver Wendell Holmes, Sr., Henry Wadsworth Longfellow, James Russell Lowell, John Lothrop Motley, Charles Sumner, and John Greenleaf Whittier. In addition, there are two incomplete manuscripts by Emerson and one document from the Liverpool Custom-house signed by Nathaniel Hawthorne as Consul for the United States. The collection also includes the corrected typescript, index, and page and galley proofs for Thomas Franklin Currier, A BIBLIOGRAPHY OF OLIVER WENDELL HOLMES (New York, 1953) which was edited by Professor Tilton. Also, some early correspondence and photographs of the Tilton family and friends. There are letters from the actors Annie Louise Ames, Richard J. Dillon, and Hans L. Meery to Tilton's grandfather, Bernard Paul Verne, as well as photographs, tintypes, and daguerreotypes of the Verne family and friends.

Correspondence, manuscripts, documents, notebooks, memorabilia, a tape cassette, photographs, and printed materials. The collection is primarily correspondence files, both personal and professional, along with book reviews, awards and diplomas, letters of condolence on his death, clippings, and correspondence, manuscripts and printed materials relating to THE STREAM OF HISTORY. The correspondence relates specifically to the third edition. The manuscripts are typed and holograph inserts for the third edition and possibly for the second edition as well. Among the manuscripts are twenty-two notebooks containing holograph notes and drafts of chapters. The printed material consists of one copy of THE STREAM OF HISTORY, 1934 edition.

Correspondence, manuscripts, notes, notebooks, documents, photographs, course-related materials, and printed materials. The manuscripts include typescripts of Sykes' published and unpublished novels, monographs, plays, short stories, and articles. Among these are The Perennial Avant Garde, The Cool Millennium, and The Hidden Remnant. Sykes' notes and notebooks span the period from the early 1930s to 1980, and include preliminary ideas and sketches for his books, as well as autobiographical material. A small number of documents concern Sykes' wartime work in the U.S. Government Office of War Information. Course-related material including writings and correspondence of students taught by Sykes between 1962 and 1975 at the New School and as an adjunct professor at Columbia University. Printed materials consist of numerous reviews of Sykes' books, in addition to offprints and articles by Sykes. Included as well are printed materials about or connected with Sykes, offprints of articles inscribed to him, and many volumes from his library. The substantial correspondence series includes personal letters and correspondence with agents and publishers relating to his books. Correspondents include Harold Clurman, Aaron Copland, Lawrence Durrell, Georgia O'Keeffe, and Francis Steegmuller, as well as a number of Sykes' students. There is extensive correspondence between Sykes and the artist John Hartell from 1927 to 1983.

The correspondence, research, and teaching files of French-American cultural historian and Columbia University professor emeritus Jacques Barzun (1907-2012).

Correspondence, research notes, articles, clippings, photostats, and photographs. These files concern his interest in Pierre Bayle, Antoine Arlier, and the Renaissance in Provence, as well as the Romanic Review, philology, French, Spanish, and celtic studies. Among the correspondents are: Philippe Berthelot, Nicholas Murray Butler, F.R. Coudert, John H. Finley, the Prince de Ligne, Curtis Hidden Page, William B. Parsons, and Aime ́Puech.

Correspondence, manuscripts, drawings, documents, photographs, clippings, and other printed materials. Most of Freeman's own letters are written to Anne Williams Feinberg, his secretary. Among the cataloged correspondence are: Sherwood Anderson, Margaret Bourke-White, Erskine Caldwell, John Dos Passos, Theodore Dreiser, Langston Hughes, Edna St. Vincent Millay, and Lincoln Steffens. There is the manuscript of his book NEVER CALL RETREAT.