Subjects
- Coal mining - Illinois.1
- Coal mining - Labor organization.19
- Coal mining - Logan Coal Operators Association.1
- Coal mining - March on Mingo and Logan.1
- Coal mining - Medical care.2
- Coal mining - Miners' March of 1919.2
- Coal mining - Miners' Treason Trials.2
- Coal mining - Safety.3
- Coal mining - Scrip.1
- Coal mining - West Virginia Coal Association.1
- Coal mining - Working conditions.1
- Coal mining - coal companies.2
- Coal mining - coal operators associations.3
- Coal mining - company stores.1
- Coal mining -- Strikes3