Subjects
- African Americans -- Segregation -- West Virginia1
- Coal - Mine safety.1
- Coal industry - miners' wages.1
- Coal industry.1
- Coal miners1
- Coal miners - Medical care.1
- Coal miners--West Virginia1
- Coal mines and mining -- Kentucky1
- Coal mining - Labor organization.3
- Coal mining - Mechanization.1
- Coal mining - Medical care.1
- Coal mining - Safety.1
- Coal mining - Working conditions.1
- Coal mining - coal operators associations.1
- Coal mining -- Strikes2