- Boots (Steiffel) and Peterson (Biedert) Families Genealogies, 1771/19851
- Borland Family Papers, 1771/19404
- Bowman Family Papers, 1765/19982
- Boyers Morgan Clark, Compiler, Genealogy Records, 1660/19551
- Bradford Laidley Papers, 1755/19911
- Bradley T. Johnson Papers
1676-19373
- Brady Family Papers, 1750/19801
- Brafferton Estate Collection, 1691/19352
- Bray Papers, 1730/18174
- Broadside Collection, 1777/20123
- Brooke County (W. Va.) Court Records and Miscellaneous Papers, 1780/191810
- Brooks F. McCabe, Collector, Papers, 1770/20191
- Brown Family Papers, Photographs and Maps, 1765/19591
- Brown, Coalter, Tucker Papers (I), 1790/19298
- Bruton Parish Church (Williamsburg, Va.) records, 1662/2010, bulk 1900/20003