- Bettie Hiter Willis Papers, 1864/19421
- Black, Kent, and Apperson Family Papers, 1779/19848
- Blackley Family papers, 1830/20206
- Blake W. Corson, Jr., Papers, 1861/1984, bulk 1934/19791
- Board of Visitors correspondence and administrative records, historical, 1846/19371
- Board of Visitors records, 1757/20234
- Borland Family Papers, 1771/19401
- Bosworth and Fling Family Papers, 1890/1960, bulk 1935/19571
- Braxton County (W. Va.) Court Records and Miscellaneous Papers, 1830/19532
- Bright Family Papers, 1876/19333
- Broadside Collection, 1812/2013, bulk 1900/19501
- Brooke County (W. Va.) Court Records and Miscellaneous Papers, 1780/19183
- Broome Family Papers, 1862/19954
- Brown, Coalter, Tucker Papers (I), 1790/19291
- Brown, Coalter, Tucker Papers (II), 1791/19204