Subject
- Clay.1
- Coal mines and mining--Pennsylvania.1
- Coal--Pennsylvania.1
- Coalfields--Pennsylvania.1
- Cochran, Jacqueline.1
- Construction workers--Singapore.1
- Cotton, Joseph P. (Joseph Potter), 1875-1931.1
- Docks.1
- Elks (Fraternal order)1
- Equality.1
- Erie, Lake.1
- Families--United States.1
- Folk art -- Georgia.1
- Folk art--New England.1
- Forests and forestry--Mexico.1
- Hoover, Herbert, 1874-1964.1
- Humanism.1
- Humanists.1
- Ice breaking operations.1
- Ice-boats.1