Subjects
- Coal mining - coal operators associations.1
- Coal mining -- Strikes1
- Coal mining and coal companies - McDowell County.1
- Coal mining.3
- Correspondence.3
- Diaries and journals.1
- Economic--United States.1
- Education2
- Environmentalism2
- Farms and farming.1
- Fortification1
- Gas1
- Gas industry2
- Glass negatives.1
- Leases - Oil and gas.1