- Andrew S. Core, Typescripts and Charts, 1804/18881
- Anita Cutright Burnett, Collector, Papers, 1790/19351
- Ann Smith Academy Papers, 1807/19101
- Anna Burton Ellett Collection, 1751/19323
- Anne Atkinson Chamberlayne Collection., 1742/19631
- Anthony Adrian Keith-Falconer fox hunting journal, 1820/18231
- Anthony Ware, Miscellaneous Papers, 1773/18861
- Appomattox Manor Music Collection, 1800/1940, bulk 1850/19101
- Archibald Stuart Ledgers, 1757/18522
- Archibald Woods Papers, 1777/1846, bulk 1783/184672
- Aretas Brooks Fleming (1839-1923) Papers, 1784/19241
- Aretas Brooks Fleming Papers, 1784/19241
- Arithmetic Notebook, I, 1780/18201
- Armistead Boothe Papers (MS164), 1803/19903
- Armistead Papers, 1736/18971