- Coal miners✖[remove]2,775
- United Mine Workers of America1,912
- Coal mines and mining1,672
- International Union of Mine, Mill, and Smelter Workers1,533
- Coal mine accidents1,106
- Strikes and lockouts--Coal mining1,051
- Labor movement1,033
- Congress of Industrial Organizations (U.S.)1,032
- Labor Unions1,032
- Coal mines and mining--Safety measures1,029
- Coal mines and mining--Law and legislation1,008
- Communism526
- United Furniture Workers of America525
- Elections340
- Ku Klux Klan (1915- )340
- Race relations340
- Racism340
- Political Parties339
- Politics and Government339
- Coal miners--Labor unions275
