Collection
- Adriaan Jacob Barnouw papers, 1895-19672
- Advanced Papyrological Information System records, 1996-20141
- Afrikan Petrovich Bogaevskii Papers, 1918-19344
- Agatha Young manuscripts, 1960-19651
- Agnes Kun and Antal Hidas Papers, 1915-19874
- Agudath Israel Records, 1933-2008, bulk 1940-19471
- Al Hirschfeld "1945 Dramatic Prize Winners", 19451
- Al Jaffee Papers, circa 1900-20194
- Al Mutanabbi Street Starts Here collection, 2007-20195
- Alan Alexander Milne letters, 1918-19191
- Alan Brinkley papers on Henry R. Luce, 1910-2009, bulk 1922-19652
- Alan Cameron papers, 1959-20207
- Alan H. Kempner papers, 1809-19813
- Alan K. Young: My Brief Mystery-Writing Career, 1967-19801
- Alan Sillitoe letters, 1959-19741
- Albert Ellis papers, 1920-2007, bulk 1965-19976
- Albert Ford Hinrichs Papers, 1930-19781
- Albert Gailord Hart papers, 1925-19807
- Albert Goldman papers, 1953-199415
- Albert Lasker papers, 1928-1952, bulk 1946-19522