Subjects
- Coal mining - coal companies.1
- Coal mining - coal operators associations.1
- Coal mining - disasters.3
- Coal mining -- Strikes1
- Coal mining.6
- Diaries and journals.1
- Education1
- Hospitals and sanitariums.1
- Industrial accidents1
- Industrial safety1
- Maps.3
- Monongah Mines Disaster, Monongah, W. Va., 19071
- New Deal, 1933-19391
- New River coalfields.1
- Pocahontas-Flat Top coalfield.1