Subjects
- Coal companies - Island Creek Coal Company.1
- Coal companies - Smokeless Coal Fields.1
- Coal companies - Solvay Collieries.1
- Coal miners2
- Coal miners - March on Mingo and Logan.1
- Coal mines and mining1
- Coal mining - Antler Coal and Coke Company.1
- Coal mining - Beaver Coal Company.1
- Coal mining - Carrolltown Coal Company.1
- Coal mining - Cherry Tree Coal Company.1
- Coal mining - Estep Brothers Coal Mining Company.1
- Coal mining - Labor organization.6
- Coal mining - Logan Coal Operators Association.1
- Coal mining - March on Mingo and Logan.2
- Coal mining - Medical care.2