- A. G. Stuart Notebook, 18721
- Abbot E. Smith Papers, 1930/19391
- Alexander W. Archer Textbook, 18251
- Alfred R. Armstrong Papers, 1928/19761
- Anthony Esler Papers, 1962/19801
- Archibald F. Ward, Jr. Papers, 1939/2007, bulk 1945/19601
- Archibald Stewart Notebook, 17051
- Arithmetic Notebook, 18321
- Arithmetic Notebook, I, 1780/18201
- Arithmetic Notebook, II, 18331
- Armistead C. Gordon Notes about the Bench and Bar of Virginia, 19091
- Asa Dupuy Notebook, 1819/18211
- Association for the Preservation of Virginia Antiquities, Yorktown Branch Records, 1921/2013, bulk 1975/20051
- Attorney's Notebook, 1872/18891
- Baird Family Papers, 1656/1922, bulk 1656/18481