Topical Subjects
- Coal Mines and Mining--Surface Mining.26
- Coal Mines and Mining--Tipples.170
- Coal Mines and Mining--Trevey Collection.39
- Coal Mines and Mining--William River Mine.13
- Coal Mines and Mining.1,007
- Coal Strike, Colo., 1913-1914.62
- Coal Strike, W. Va., 1920-1921.7
- Coal and Coke Railway.2
- Coal ash.1
- Coal dust.3
- Coal mine accidents--West Virginia--Barrackville.1
- Coal mine accidents--West Virginia--Fairmont.5
- Coal mine accidents--West Virginia--Havaco.1
- Coal miners' spouses--Colorado--Ludlow.1
- Coal miners' spouses--Illinois--Centralia.1
- Coal miners' spouses--West Virginia--Monongah.2
- Coal miners' spouses--West Virginia--Old Berry Hill.1
- Coal miners' spouses.22
- Coal miners--China.5
- Coal miners--Colorado--Ludlow.12