Subjects
- Charters, Railroad and road -- Pennsylvania 1850's1
- Church buildings1
- Civil War -- Camps and camp life1
- Coal mining.1
- Diaries and journals.1
- Education1
- Elections2
- Estate settlements.1
- Farms and farming.1
- Iron furnaces and iron industry.1
- Lumber trade1
- Medicine - Health and Medical Schools 1850's.1
- Medicine. SEE ALSO Folk medicine.1
- Missionaries1
- Petroleum industry and trade1