- Anatole and Vladimir Kalichevsky Papers, 1871/19551
- Anderson Family papers, 1755/19581
- Andrew C. L. Gatewood papers, 1860/19931
- Ann Norvell Otey Scott Papers, 1920/19481
- Anne T. Chapman Papers, 1884/19541
- Anson Du Puy Van Buren letters, 1863/19971
- Armistead Boothe Papers (MS164), 1803/19901
- Arnold Goldman Living Newspaper collection, 1931/19731
- Arthur George Williams Scrapbooks, 1905/19351
- Association for the Preservation of Virginia Antiquities, Colonial Capitol Branch Records, 1896/19891
- Association for the Preservation of Virginia Antiquities, Yorktown Branch Records, 1921/2013, bulk 1975/20051
- Augustus C. Golding Papers, 1859/1934, bulk 1862/18641
- Austin-Twyman Papers, 1765/19391
- B. Floyd Flickinger Papers, 1927/19501
- Barron Family Papers, 1793/19421