| Irving Richter Papers | Abstracts |
| Morris Riger Papers | Abstracts |
| Matilda Robbins Papers | Abstracts |
| George Roberts Papers | Abstracts |
| Archie W. Robinson Papers | Abstracts |
| Robert N. Rockwell Papers | Abstracts |
| Cecil Roeder Papers | Abstracts |
| Marvin Rogoff Papers | Abstracts |
| Harry Ross Papers | Abstracts |
| Fred Ross Sr. Papers | Abstracts |
| Robert Rossi Papers | Abstracts |
| Herrick S. Roth Papers | Abstracts |
| Jack Rugh Papers | Abstracts |
| Edward Sadlowski Papers | Abstracts |
| Saginaw Federation of Labor Records | Abstracts |
| Wilbert Salmi Papers | Abstracts |
| David S. Schick Papers | Abstracts |
| M. B. Schnapper Papers | Abstracts |
| Peter B. Schneider Papers | Abstracts |
| Paul Schrade Papers | Abstracts |
| Louis A. Schwartz Papers | Abstracts |
| SEIU Executive Office: David Sullivan Records | Abstracts |
| SEIU Executive Office: George Hardy Records | Abstracts |
| SEIU Executive Office: Microfilm | Abstracts |
| SEIU Executive Office: William McFetridge Records | Abstracts |
| SEIU Historical Records | Abstracts |
| SEIU International Convention Photographs | Abstracts |
| SEIU International Jewelry Workers' Union Records | Abstracts |
| SEIU International Vice-Presidents Records | Abstracts |
| SEIU Local 1 Records | Abstracts |
| SEIU Local 32B-32J Records | Abstracts |
| SEIU Local 517M Records | Abstracts |
| SEIU Local 79 Records | Abstracts |
| SEIU Photographs | Abstracts |
| SEIU Publications | Abstracts |
| SEIU Research Department Historical Records | Abstracts |
| SEIU Research Department Records | Abstracts |
| SEIU Secretary-Treasurer's Office: Constitutions and By-Laws Records | Abstracts |
| SEIU Secretary-Treasurer's Office: International Executive Board Records | Abstracts |
| SEIU Secretary-Treasurer’s Office: Affiliate Officers Records | Abstracts |
| William Seraile Papers | Abstracts |
| Brendan Sexton Papers | Abstracts |
| Ann Shafer Papers | Abstracts |
| Albert Shanker Papers | Abstracts |
| Mark Sharwood Papers | Abstracts |
| Horace Sheffield Papers | Abstracts |
| Lillian Sherwood Papers | Abstracts |
| Carl Shier Papers | Abstracts |
| A.G. Shultz Papers | Abstracts |
| Frank Siegel Papers | Abstracts |
