| Charles Ashleigh Papers | Abstracts |
| Jack Barbash Papers | Abstracts |
| Don Binkowski Papers | Abstracts |
| Arthur W. Calhoun Papers | Abstracts |
| John and Phyllis Collier Photographs | Abstracts |
| Democratic Socialist Organizing Committee (DSOC): John Mecartney Records | Abstracts |
| Sam Dolgoff Papers | Abstracts |
| Genora and Sol Dollinger Papers | Abstracts |
| Judah Drob Papers | Abstracts |
| John Dwyer Papers | Abstracts |
| Enid Eckstein Papers | Abstracts |
| George C. Edwards, Sr. Papers | Abstracts |
| Hy Fish Papers | Abstracts |
| William C. Gausmann Papers | Abstracts |
| Carl Haessler Papers | Abstracts |
| Philip Heller Papers | Abstracts |
| John Herling Papers | Abstracts |
| Mary Fox Herling Papers | Abstracts |
| International Socialists Records | Abstracts |
| Dr. Shmarya Kleinman Papers | Abstracts |
| Nettie Kravitz Papers | Abstracts |
| Maynard Krueger Papers | Abstracts |
| Edward Levinson Papers | Abstracts |
| Stephen Lighthill Film Collection | Abstracts |
| James Lindahl Papers | Abstracts |
| Tom Mooney Papers | Abstracts |
| Elizabeth Morgan Papers | Abstracts |
| National Caucus of Labor Committees Records | Abstracts |
| Oscar Paskal Collection | Abstracts |
| Irving Pokempner Papers | Abstracts |
| Harry Riseman Papers | Abstracts |
| Ronald Aronson Papers | Abstracts |
| Helen Schiff Papers | Abstracts |
| George Shenkar Papers | Abstracts |
| Smith College Records | Abstracts |
| Tucker P. Smith Collection | Abstracts |
| Richard B. Tussey Papers | Abstracts |
| Lawrence and Dorothy Van Camp Papers | Abstracts |
| George Lavan Weissman Papers | Abstracts |
| Marianna Wells Papers | Abstracts |
| Herman Wolf Papers | Abstracts |
| The Birth, Life, and Legacy of the Johnson-Forest Tendency in the Nettie Kravitz Papers | Blog entry |
| (5055) Thomas Mann, Portrait, 1910s | Image |
| (5058) Thomas Mann, Group Photo, 1910s | Image |
| (5059) Thomas Mann, Portrait, 1910s | Image |
| (5159) Daniel de Leon, Socialism, Portrait, 1900s | Image |
| (32630) James and Grace Lee Boggs, Candid Views, 1970s-1980s | Image |
| (32631) Grace Lee Boggs, Speaking, 1980s-1990s | Image |
| (32632) Grace Lee Boggs, Speaking, 1980s-1990s | Image |
| (32633) Grace Lee Boggs, Speaking, 1980s-1990s | Image |
