- Alderman family papers, 1779/19617
- Alexander Brown Papers (I), 1815/19108
- Alexander Brown Papers (II), 1748/19001
- Alexander Family Papers
1800-18909
- Alexander Galt Letters, 1848/18492
- Alexander Haight family collection, 1764/19764
- Alexander Hamilton, Jr. Letters, 1832/18331
- Alexander Hugh Holmes Stuart Account Books, 1837/18572
- Alexander Lockhart Nelson papers, 1848/19021
- Alexander McNutt Glasgow Family Papers, 1823/19036
- Alexander S. Brown letters, 1846/18482
- Alexander, Fultz, and Willson Families Collection, 1770/19701
- Alexandria Black Family Reunion Digital Collection, 1937/20051
- Alexandria Gazette Ledgers (MS026), 1833/18666
- Alexandria History Collection (MS240), 1767/200828