Collection
- Dalkey Archive Press records, 1972-2018, bulk 1990-20114,101
- Marvin Kitman papers, 1950-20064,020
- New York City Opera records, 1924-2019, bulk 1965-19913,924
- Intercollegiate Athletics and Physical Education negatives, 1932-19633,915
- James O. Brown Associates records, 1927-19923,857
- Citizens Union of the City of New York records, 1892-20203,835
- Granary Books records, 1985-20163,741
- Institute of Current World Affairs records, 1914-2018, bulk 1926-20113,719
- Albert Ellis papers, 1920-2007, bulk 1965-19973,704
- Historical subject files, 1810s-2022, bulk 1968-19723,654
- Amos Vogel papers, 1896-2001, bulk 1960-19903,642
- New York Chamber of Commerce and Industry records, 1768-1984, bulk 1860-19733,608
- Guglielmo Ferrero papers, 1871-1944, 1981, bulk 1890-19423,593
- Arthur Levitt papers, 1948-20073,432
- Who's who in the American theatre records, 1941-19693,390
- Joseph Stiglitz papers, 1970s-20193,382
- David Eugene Smith Professional papers, 1860-19453,318
- Robert M. Morgenthau papers, 1944-20193,316
- Center for US-China Arts Exchange records, 1956-2019, bulk 1977-20033,277
- Edmund Clarence Stedman papers, 1840-19603,254