Names
- Rockefeller, Nelson A. (Nelson Aldrich), 1908-1979.1
- Rogers, Grant, 1907-1
- Schaber, Will1
- Schaefer, James1
- Schaefer, Katherine1
- Schaefer, Lois (Perret)1
- Schaefer, Susan1
- Schwarzchild, Henry1
- Seeger, Pete, 1919-1
- Seward, William H. (William Henry), 1801-1872.1
- Sheet Metal Workers' International Association1
- Siemsen, Harry1
- Siena College1
- Smykla, John Ortiz1
- Socialist Labor Party1
- Socialist Party of the United States of America1
- Socialist Party of the United States of America. Dover Local1
- Spaziano, Joseph1
- State College for Teachers (Albany, N.Y.)1
- State Normal School (Albany, N.Y.)1