- Alabama Collection, 1823/18932
- Albert Frederick Wilson papers, 1840/19343
- Albert R. Gallatin papers, 1795/18281
- Alderman family papers, 1779/19617
- Alexander Brown Papers (I), 1815/191010
- Alexander Brown Papers (II), 1748/19008
- Alexander Family Papers
1800-18908
- Alexander Haight family collection, 1764/19766
- Alexander Hamilton, Jr. Letters, 1832/18331
- Alexander Hugh Holmes Stuart Account Books, 1837/18572
- Alexander Lockhart Nelson papers, 1848/19021
- Alexander M. Davis Papers, 1850/18922
- Alexander McNutt Glasgow Family Papers, 1823/19036
- Alexander, Fultz, and Willson Families Collection, 1770/19701
- Alexandria Black Family Reunion Digital Collection, 1937/20051