- Alderman family papers, 1779/19612
- Alexander G. Gilliam collection of University of Virginia history papers, 1921/20192
- Alexander Haight family collection, 1764/19762
- Alexander Kallos Papers, 1939/19591
- Alexander Sterrett Paxton Papers, 1858/1959, bulk 1861/18651
- Alexandria Black Family Reunion Digital Collection, 1937/20051
- Alexandria Building and Repair Permits (MS080), 1930/19492
- Alexandria History Collection (MS240), 1767/20088
- Alexandria Library Company Records (MS002), 1794/20071
- Alexandria Office of Sheriff Jail Records (MS054), 1891/19481
- Alfred A. Bolton, Papers regarding History of Management and Other Material, 1900/200732
- Alfred C. Payne Collection, 1917/20036
- Alfred R. Armstrong Papers, 1928/19761
- Alice Constance Burford Booth Papers, 1940/19681
- Alice Rice Jaffe Papers, 1807/1950, bulk 1919/19501