- B. J. Spruell Account Book, 1782/18361
- B. P. Blasingame Papers, 1962/197816
- Bagby Family Papers,
1797-190043
- Bailey Sisters Photograph Collection, 1942/194821
- Bailey-Law Collection, 1825/1971978
- Baird Family Papers, 1656/1922, bulk 1656/18482
- Baker Family Papers
1781-192120
- Baker's Store daybooks, 1861/18782
- Baldwin Family Letters, 1861/189759
- Baldwin-Stoddard Family Notebook, 18931
- Ball Family Genealogical Chart
n.d.1
- Ball Family Papers,
1650-186448
- Ball's Bluff National Cemetery Plat
18711
- Ballard Hartwell Cabell collection, 1915/19697
- Baltimore Woman's Committee for Cuban Freedom, 1961/196552