- Alan R. Shirkey photograph collection, 1877/19174
- Albert Blakeslee White (1856-1941) Papers, 1888/19293
- Albert C. Swindler Papers, 1862/1929, bulk 1862/18642
- Albert Frederick Wilson papers, 1840/19343
- Albert L. Sturm Papers, 1904/19883
- Albert M. Reese (1872-1965) Papers, 1873/19541
- Albert M. Reese (1872-1965) Papers, 1907/19541
- Albert Moore Reese, Zoology Professor, Miscellaneous Items, 1900/19708
- Albert R. Gallatin papers, 1795/18281
- Alderman family papers, 1779/19618
- Alexander Farish Robertson Papers, 1867/193133
- Alexander Foreman, Photographer, Glass Plate Negatives, 1890/19251
- Alexander Haight family collection, 1764/19769
- Alexander Hamilton, Jr. Letters, 1832/18331
- Alexander Sterrett Paxton Papers, 1858/1959, bulk 1861/18651