- Big Brothers of America (6)
- Birthright, Inc (4)
- Black Canadians (2)
- Black Muslims (1)
- Black Sailors (5)
- Black Women Social Workers (4)
- Blacks Segregation (3)
- Blindness (1)
- Blindness in African Americans (1)
- Bloomfield, Meyer, 1878 1938 (1)
- Blue Cross and Blue Shield Association (1)
- Boas, Franz, 1858 1942 (1)
- Bowker, Horace (3)
- Boy Scouts of America (1)
- Boycotts Alabama (1)
- Bradford, Cornelia, 1847 1935 (1)
- Braucher, Howard S., 1881 1949 (5)
- Breckinridge, Sophonisba P (Sophonisba Preston), 1866 1948 (1)
- Brotherhood Week (214)
- Brotherhood of Sleeping Car Porters (1)
