Correspondence, manuscripts, photographs, memorabilia, and printed materials concerning Berg's lifelong interest in and work for his alma mater. Berg served the University in many capacities such as vice-president and president of the Alumni Association of Columbia College, 1954-1958, and member of the board of directors of the Alumni Federation of Columbia University, 1946-1958. The correspondence deals chiefly with alumni affairs; some of the major correspondents include Harry J. Carman, Lawrence Chamberlain, Frank S. Hogan, Mr & Mrs Richard Rodgers, and Arthur Hays Sulzberger. Among the photographs are two signed by Dwight D. Eisenhower. Also included is a typescript memoir of Berg's three years as a student in the Columbia School of Law (1927). Berg collaborated with three other students on this memoir. Aaron Berg's correspondence with Dwight D. Eisenhower is at the Eisenhower Library. Also included are literary autographs and manuscripts purchased on the Aaron Berg Fund.

Personal and professional papers of the notable literary critic. The collection includes correspondence, manuscripts, notes, journals, photographs, drawings and films, and a collection of signed and annotated books and magazines from Dupee's library.

The Lionel Trilling Papers document the life of author, professor, and literary critic, Lionel Trilling. This collection contains his writings, extensive correspondence with other New York intellectuals, personal documents, and other records concerning his professional activities.

Letters, manuscripts, notes, proofs, course materials, and printed matter. The letters are chiefly from his colleagues at Columbia University, other literary critics, a few publishers and, single letters from several American authors. There is a series of lengthy letters from Chase to his wife, Frances Marie Walker Chase, dated 1938 and 1949-1961; letters from his colleagues and friends to Mrs Chase, 1962-1967, mostly letters of condolence on Chase's death, and a few related to his publications. The manuscripts and proofs of his writings include typescripts on Herman Melville and Walt Whitman. Also included are notes on American and Englisgh literature, course materials for his Columbia courses, articles and reviews by him, articles, reprints and reviews by others, most of which are inscribed to Chase, and three dozen volumes of his own works, including foreign translations. In addition, there are 250 volumes from Chase's library, many with his annotations and marginalia. 1984 ADDITION: Letters from friends dealing with the contemporary literary world between 1948-1955. The main body of material is from Robert Willard Flint, a sometime poet and critic, who was a graduate student at Columbia in 1946 and later worked at the Harvard Library. 1986 ADDITION: Letters to Richard Chase from colleagues in the literary world, 1948-1971, with 2 letters to his wife after his death. 114 of these letters are from Robert Flint, 25 from Lionel Trilling, and 3 letters from Robert Penn Warren