Topical Subjects
- Coal miners--West Virginia--Grafton.2
- Coal mines and mining--Illinois--Elkville.2
- Coal mines and mining--Kentucky.2
- Coal mines and mining--West Virginia--Grafton.2
- Mine roof bolting.2
- Bituminous coal industry.1
- Boring.1
- Coal Mines and Mining--Mine Facilities.1
- Coal Mines and Mining--Price Hill Colliery.1
- Coal Mines and Mining--William River Mine.1
- Coal miners--Kentucky.1
- Coal miners--West Virginia--Barrickville.1
- Coal miners--West Virginia--Elkhorn.1
- Coal miners--West Virginia--Preston County.1
- Coal miners--West Virginia--Pursglove.1
- Coal miners--West Virginia--Webster County.1
- Coal mines and mining--Explosives.1
- Coal mines and mining--Illinois--Carrier Mills.1
- Coal mines and mining--Kentucky--Jenkins.1
- Coal mines and mining--Safety measures.1