Collection
- Abrams ComicArts records, 2009-2017180
- Academy of Political Science letters, 1923-197021
- Acton Griscom collection of Jeanne d'Arc manuscripts, 1400-19431
- Adam P. and Feofaniia V. Benningsen Papers, 1919-19571
- Adele C. Brockhoff letters, 1946-198119
- Adol'f Markovich Lazarev Manuscript, 19641
- Adolf K. Placzek papers, 1932-200020
- Adolph Oko collection of Spinoza materials, 1610-1958, bulk 1914-1958946
- Adriaan Jacob Barnouw papers, 1895-196731
- Adrian Ksenofontovich Kharkevich Memoirs, 1927-1956, 1927-19561
- Advanced Papyrological Information System records, 1996-201416
- Adál Maldonado papers, 1970-20211
- Afrikan Petrovich Bogaevskii Papers, 1918-193448
- Agatha Young manuscripts, 1960-196510
- Agnes Kun and Antal Hidas Papers, 1915-1987129
- Agudath Israel Records, 1933-2008, bulk 1940-19474
- Ahmed Zeki Velidi Togan Manuscripts, 19561
- Al Hirschfeld "1945 Dramatic Prize Winners", 19456
- Al Jaffee Papers, circa 1900-2019493
- Al Mutanabbi Street Starts Here collection, 2007-2019346