- Albert R. Gallatin papers, 1795/18281
- Albert Taylor Bledsoe and Sophia Bledsoe Herrick letters, 1858/19081
- Alderman family papers, 1779/19616
- Alexander Brown Papers (I), 1815/19102
- Alexander Farish Robertson Papers, 1867/193132
- Alexander Foreman, Photographer, Glass Plate Negatives, 1890/19251
- Alexander Haight family collection, 1764/197611
- Alexander Hamilton, Jr. Letters, 1832/18331
- Alexander Lockhart Nelson papers, 1848/19021
- Alexander McNutt Glasgow Family Papers, 1823/19036
- Alexander Sterrett Paxton Papers, 1858/1959, bulk 1861/18652
- Alexander Wylie Moore miscellaneous papers, 1896/19501
- Alexander, Fultz, and Willson Families Collection, 1770/19701
- Alexandria Black Family Reunion Digital Collection, 1937/20051
- Alexandria History Collection (MS240), 1767/200826