Subjects
- Railroads[remove]42
- Politics and government.22
- Lawyers - letters and papers.18
- Coal mining.15
- Transportation11
- Account books8
- Lumber trade8
- Judges - letters and papers.7
- Petroleum industry and trade7
- Politicians -- United States7
- Diaries and journals.6
- Elections6
- Railroads - Baltimore and Ohio Railroad.6
- Rivers and river valleys.6
- Slaves and slavery.6