All Subjects
- Coal mines and mining--West Virginia--Safety measures.1
- Coal mines and mining.1
- Coal preparation plants--West Virginia.1
- Coal preparation.1
- Coal taxation--West Virginia.1
- Coal trade--Economic aspects--West Virginia.1
- Coal trade--Social aspects--West Virginia.1
- Coal trade--United States.1
- Coal transportation--Virginia.1
- Coal transportation--West Virginia.1
- Coke industry--West Virginia.1
- Colcord (W. Va.)1
- Collective labor agreements--Coal mining industry--United States.1
- Consolidation Coal Company.1
- D-T-S Coal Company.1
- Davis, Raymond M.1
- Davis, Raymond M. Proposed new international order.1
- Davis-Wilson Coal Company.1
- Dry Creek (W. Va.)1
- Edwight (W. Va.)1