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Topical Subjects
- Strikes and lockouts--Coal mining.[remove]6
- Coal Mines and Mining--Strikes--Bittner Collection.3
- Coal miners.3
- Children of coal miners.2
- Coal Mines and Mining--Trevey Collection.2
- Coal miners' spouses.2
- Paperboys.2
- Coal Mines and Mining--Strikes--H.B. Lee Collection.1
- Coal miners--Dwellings.1
- Demonstrations.1
- Identification photographs.1