| Communism--United States | 7 |
| United States--Race relations | 2 |
| African Americans--Civil rights | 1 |
| African Americans--Politics and government | 1 |
| Berkman, Alexander, 1870-1936 | 1 |
| Coal miners--United States | 1 |
| Communism and music | 1 |
| Coxe, Alexander B., Sr., 1872-1965--Correspondence | 1 |
| Flanders, Ralph E. (Ralph Edward), 1880-1970 | 1 |
| Goldman, Emma, 1869-1940 | 1 |
| Guitar | 1 |
| Hoover, J. Edgar (John Edgar), 1895-1972--Correspondence | 1 |
| McCarthy, Joseph, 1908-1957 | 1 |
| Minorities--United States | 1 |
| Robinson, Jackie, 1919-1972 | 1 |
| Rock musicians | 1 |
| Scripps-Howard Newspapers | 1 |
| United States--Politics and government | 1 |
| Williams, Thomas A. (Thomas Andrew), 1931-. We choose America | 1 |
| Yokinen, August | 1 |
