Subjects
- Railroads[remove]45
- Politics and government.20
- Coal mining.16
- Lawyers - letters and papers.15
- Transportation11
- Account books9
- Lumber trade9
- Judges - letters and papers.8
- Petroleum industry and trade8
- Diaries and journals.7
- Elections6
- Politicians -- United States6
- Railroads - Baltimore and Ohio Railroad.6
- Rivers and river valleys.6
- Coal mining - coal companies.5