Subjects
- Environmentalism1
- Estate settlements.1
- Farms and farming.1
- Frontier and pioneer life1
- Genealogy2
- Hospitals and sanitariums.1
- Iron furnaces and iron industry.1
- Labor organization. SEE ALSO Coal mining - labor1
- Lumber trade1
- Mining. SEE ALSO Coal mining.1
- Missionaries1
- Petroleum industry and trade2
- Politics and government.1
- Railroads1
- Reconstruction (U.S. history, 1865-1877)1