- Anita Cutright Burnett, Collector, Papers, 1790/19351
- Anna Burton Ellett Collection, 1751/19323
- Anne Atkinson Chamberlayne Collection., 1742/19631
- Anthony Ware, Miscellaneous Papers, 1773/18861
- Archibald Stuart Ledgers, 1757/18523
- Archibald Stuart Papers, 1790/18162
- Archibald Woods Papers, 1777/1846, bulk 1783/184649
- Aretas Brooks Fleming (1839-1923) Papers, 1784/19241
- Aretas Brooks Fleming Papers, 1784/19241
- Arithmetic Notebook, I, 1780/18201
- Armistead Papers, 1736/18971
- Armistead-Cocke Papers, 1680/19176
- Armstead L. Robinson papers, 1848/2001, bulk 1967/19921
- Ashcraft Family Genealogy, 1732/19721
- Association for the Preservation of Virginia Antiquities, Montgomery County Branch Papers, 1754/1996, bulk 1958/19832