Subjects
- Coal mining - disasters.1
- Coal mining -- Strikes2
- College Students -- Social life and customs1
- Communism2
- Cooperation1
- Correspondence1
- Dramatists, Irish -- 20th century -- Correspondence1
- Economic history -- United States1
- Education, Higher1
- Elections2
- Fluoridation.1
- Labor2
- Labor organization - Subversive Activities Control Board.1
- Labor organization - integration.1
- Labor unions1