| Helen W. Berthelot Papers | Abstracts |
| Glen R. Betts Papers | Abstracts |
| William W. Betts Papers | Abstracts |
| Sam Blackburn Papers | Abstracts |
| John Blaich Papers | Abstracts |
| Ann Blankenhorn Papers | Abstracts |
| Heber Blankenhorn Papers | Abstracts |
| Irving Bluestone: Saturn Corporation Papers | Abstracts |
| Leon Blythe Papers | Abstracts |
| David Bonior Papers | Abstracts |
| Eula Booker Papers | Abstracts |
| Philip Booth Papers | Abstracts |
| Selma Borchardt Papers | Abstracts |
| Robert Bordner Papers | Abstracts |
| George And Grace Brewer Papers | Abstracts |
| Bricklayers and Masons International Union of America Records | Abstracts |
| British Columbia Teachers' Federation Records | Abstracts |
| Brookwood Labor College Photographs | Abstracts |
| Charles Brooks Papers | Abstracts |
| Brotherhood of Maintenance of Way Employes Records | Abstracts |
| Ivan Brown Papers | Abstracts |
| James H. Brown Papers | Abstracts |
| Joe Brown Papers | Abstracts |
| Raphael and Olga Brown Papers | Abstracts |
| Roy M. Brown Papers | Abstracts |
| Buck Dinner Committee Records | Abstracts |
| Floyd Bueno Papers | Abstracts |
| Valery Burati Papers | Abstracts |
| David S. Burgess Papers | Abstracts |
| Robert Burkart Papers | Abstracts |
| George Burt Papers | Abstracts |
| John Burton Papers | Abstracts |
| William Cahn Papers | Abstracts |
| Arthur W. Calhoun Papers | Abstracts |
| Mellie and Herbert S. Calvert Papers | Abstracts |
| Lester Cappon Papers | Abstracts |
| James B. Carey Papers | Abstracts |
| Robert E. Carlson Papers | Abstracts |
| Lawrence Carlstrom Papers | Abstracts |
| Center for Community Change Records | Abstracts |
| W. Ellison Chalmers Papers | Abstracts |
| Gordon W. Chapman Papers | Abstracts |
| Charles Chiakulas Papers | Abstracts |
| Chicago Union Printers Baseball Association Records | Abstracts |
| Ely Chinoy Papers | Abstracts |
| Louis Ciccone Papers | Abstracts |
| Cigar Makers Union No. 130 Records | Abstracts |
| CIO Department of Education and Research Records | Abstracts |
| CIO Executive Board Minutes and Proceedings | Abstracts |
| CIO Housing Committee: Leo Goodman Records | Abstracts |
