Collection
- Grosvenor Neighborhood House records, 1913-1990s, 2013-20181
- Guastavino Fireproof Construction Company architectural records, 1866-1985, bulk 1890-19421
- Henry Edward Crampton papers, 1900-19501
- Herbert Wechsler Papers, 1919-2000, bulk 1932-19951
- Hudson Guild records, 1896-1990s1
- Ian and Betty Ballantine Books and Business Records, 1935-1994, bulk 1945-19731
- Il'ia Nikitich Mokin Papers, 1934-19441
- Independent Literary Agents Association records, 1975-19891
- Indusco Inc. records, 1938-19851
- Institute of Pacific Relations records, 1927-19621
- Institute of Philosophy and Politics of Education records, 1965-19941
- International Institute of Rural Reconstruction records, 1914-20181
- Ivan I. Morris papers, 1931-19761
- Jacques Barzun papers, 1900-19991
- James Graham Phelps Stokes papers, 1779-1960, bulk 1884-19601
- JoAnn Winsten papers, 1969-20041
- John Erskine papers, 1890-19511
- Joseph L. Blau papers, 1912-19871
- Joseph M. Price papers, 1909-19431
- Joseph Marks papers about Anne Frank, 1950-19991