- Albert Goldman papers, 1953-19944,244
- New York City Opera records, 1924-2019, bulk 1965-19914,143
- Seymour B. Durst Collection of Historical Manuscripts, Documents & Newspapers, 1764-19904,127
- Dalkey Archive Press records, 1972-2018, bulk 1990-20114,126
- Marvin Kitman papers, 1950-20064,051
- Intercollegiate Athletics and Physical Education negatives, 1932-19633,932
- Robert M. Morgenthau papers, 1913-2019, bulk 1974-20093,919
- Citizens Union of the City of New York records, 1892-20203,881
- James O. Brown Associates records, 1927-19923,865
- V. K. Wellington Koo papers, 1906-1992, bulk 1931-19663,804
- Granary Books records, 1985-20163,763
- Albert Ellis papers, 1920-2007, bulk 1965-19973,715
- Center for US-China Arts Exchange records, 1956-2019, bulk 1977-20033,702
- Historical subject files, 1810s-2022, bulk 1968-19723,697
- Amos Vogel papers, 1896-2001, bulk 1960-19903,668
- New York Chamber of Commerce and Industry records, 1768-1984, bulk 1860-19733,633
- Guglielmo Ferrero papers, 1871-1944, 1981, bulk 1890-19423,601
- Bertram Grosvenor Goodhue architectural drawings and papers, 1882-19803,579
- Arthur Levitt papers, 1948-20073,480
- Institute of Current World Affairs records, 1914-2018, bulk 1926-20113,413