Subjects
- Labor organization. SEE ALSO Coal mining - labor1
- Lawyers - letters and papers.2
- Mason-Dixon Line2
- Mills and mill-work2
- Politics and government.3
- Progressive Union Movement.2
- Prohibition -- United States -- History2
- Railroads2
- Railroads - Baltimore and Ohio Railroad.2
- Schools. SEE ALSO Academies1
- Slaves and slavery.1
- Transportation2
- Travel accounts.1
- Turnpikes. SEE ALSO Roads.1
- Union names.1