- Arnaud Preot Collection, 1841/18601
- Arthur I. Boreman Papers, 1830/19493
- Atkeson-Morgan Family Papers, 1833/1923, bulk 1850/19009
- Austin-Twyman Papers, 1765/19394
- Bailey-Law Collection, 1825/19711
- Barker-Cooke Papers, 1809/1889, bulk 1848/18662
- Barnes Family Papers, 1797/1926, bulk 1818/18751
- Barron Family Papers, 1793/19423
- Baughman Family Papers, 1837/19681
- Bell, Kent, Cloyd, Withrow Family Collection, 1780/19984
- Benjamin A. Banks Papers, 1855/19741
- Benjamin Stoddert Ewell Papers, 1784/1934, bulk 1830/18921
- Bethlehem Stone Church Records, 1844/20111
- Black, Kent, and Apperson Family Papers, 1779/19846
- Blackley Family papers, 1830/20202