- Aaron Burr papers, 1779-18171
- Aaron Frankel papers, 1948-19771
- Aaron I. Raisman student drawings, 1894-18982
- Aaron J. Vanderpoel papers, 1837-188521
- Aaron Louis Fessler papers, 1959-197816
- Aaron Resnick architectural drawings, 1947-1986176
- Aaron W. Berg papers, 1848-197740
- Aaron W. Warner Papers, 1936-20041,341
- Abbe Livingston Warnshuis papers, 1877-1963, bulk 1910-19581
- Abbott Merkt and Company records, 1906-19941,505
- Abby E. Underwood papers, 1888- 193064
- Abe H. Feder lighting records and papers, 1930s-1990s1,051
- Abe Kōbō collection, 1933-2002, bulk 1950-19931
- Abe Raskin Papers, 99991
- Abraham Alstyne Slover papers, 1812-18771
- Abraham Anderson interviews with Diana Trilling, 1987-19881
- Abraham Epstein papers, 1918-1945509
- Abraham H. Sarasohn papers, 1902-19433
- Abraham Lincoln collection, 1860s27
- Abraham M. Sirkin papers, 99991