Subjects
- Coal companies - Island Creek Coal Company.1
- Coal companies - Solvay Collieries.1
- Coal miners4
- Coal miners - March on Mingo and Logan.1
- Coal miners' trials.1
- Coal mines and mining1
- Coal mines and mining -- Electric equipment1
- Coal mining - Labor organization.5
- Coal mining - Logan Coal Operators Association.1
- Coal mining - March on Mingo and Logan.1
- Coal mining - Medical care.3
- Coal mining - New River field.1
- Coal mining - Regulation.1
- Coal mining - Safety.2
- Coal mining - Strikes - 1912-1913.1