Subjects
- Coal mining - Wage scales.1
- Coal mining - Working conditions.1
- Coal mining - age affidavits.1
- Coal mining - coal operators associations.1
- Coal mining - engineering problems.1
- Coal mining - non-union miners.1
- Coal mining -- Strikes3
- Coal mining.3
- Coal operators associations.1
- Elections1
- Environmentalism1
- Labor2
- Labor organization. SEE ALSO Coal mining - labor1
- Labor unions - Teamsters.1
- New Deal, 1933-19391