Subjects
- Coal miners - March on Mingo and Logan.1
- Coal mines and mining1
- Coal mining - Beaver Coal Company.1
- Coal mining - Labor organization.4
- Coal mining - Logan Coal Operators Association.1
- Coal mining - March on Mingo and Logan.1
- Coal mining - Mechanization.1
- Coal mining - New River field.1
- Coal mining - Regulation.1
- Coal mining - Safety.1
- Coal mining - Scrip.1
- Coal mining - West Virginia Coal Association.1
- Coal mining - Winding Gulf field.1
- Coal mining - Working conditions.2
- Coal mining - camps and company towns.1