- Bear Family Papers, 1823/18792
- Beard Papers, 1834/19062
- Beebe collection of Washington family papers, 1818/1861, bulk 1840/18501
- Bell, Kent, Cloyd, Withrow Family Collection, 1780/199823
- Ben Benson Collection, 1789/20151
- Benjamin A. Banks Papers, 1855/19746
- Benjamin F. Hughes, Soldier, Civil War Letters and Other Material, 1854/19062
- Benjamin F. Miller Letter, 18551
- Benjamin F. Rogers Papers, 1847/19141
- Benjamin Shunk Papers, 1845/18713
- Benjamin Stoddert Ewell Papers, 1784/1934, bulk 1830/189238
- Benjamin Thompson Papers, 1810/18964
- Bennett Taylor papers--addition, 1851/18942
- Benson John Lossing Collection2
- Berkeley County Papers, 1835/18891