Topical Subjects
- Coal Mines and Mining--Trevey Collection.1
- Coal Mines and Mining.106
- Coal miners--Dwellings--West Virginia.8
- Coal miners--West Virginia.12
- Coal miners.4
- Coal mines and mining--West Virginia.[remove]174
- Coal preparation plants--West Virginia.1
- Coal--Transportation--West Virginia.63
- Coal--Transportation.6
- Coal-mining machinery--West Virginia.8
- Coal-mining machinery.3
- Company stores--West Virginia.1
- Conveying machinery--West Virginia.14
- Counties--Logan.1
- Counties--Summers.3
- Counties--Taylor.1
- Electric locomotives.1
- Freight cars--West Virginia.34
- Loaders (Machines)1
- Mine accidents--West Virginia.3