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Topical Subjects
- Coal miners.[remove]11
- Coal mines and mining--Safety measures.[remove]11
- Coal Mines and Mining--Mine Safety.5
- Mine safety.4
- Coal Mines and Mining--Miners at Work.3
- African American coal miners.1
- Coal Mines and Mining--African-American Miners--Carter Collection.1
- Coal Mines and Mining--Pocahontas Operators Association.1
- Coal Mines and Mining.1
- Coal mines and mining--Dust control.1
- Coal mines and mining--West Virginia--Thomas.1
- Coal-mining machinery.1
- Coalbed methane--Testing.1
- Mining schools and education.1