- Agra Bennett, Papers Regarding Estate and Residence, 1967/20101
- Al Gross Papers, 1909/200012
- Alan Bowne papers, 1964/1991, bulk 1980/19899
- Alan Clarke Railroad Research Papers, 1861/20126
- Albemarle County Medical Society records, 1933/201530
- Albert J. Wasserman Papers, 1925/200339
- Albert L. Sturm Papers, 1904/198847
- Albert S. Armentrout Collection, 1965/20091
- Alberta Pfeiffer Architectural Collection, 1929/19762
- Alexander "Sandy" Gilliam papers, 1985/20161
- Alexander G. Gilliam collection of University of Virginia history papers, 1921/20195
- Alexander Mahood, Architect, Drawings for West Virginia University Building Projects, 1955/19791
- Alexandria Antique Arts Association Collection (MS134), 1971/199912
- Alexandria Black Family Reunion Digital Collection, 1937/20056
- Alexandria Gazette I (MS331), 1942/19961