Subjects
- Medicine -- United States -- History -- 19th century1
- Mills and mill-work1
- Ohio - Politics and government - 19th century.1
- Politicians -- United States1
- Politics and government.5
- Railroad Strike, U.S., 18771
- Railroad workers.1
- Railroads2
- Railroads - Baltimore and Ohio Railroad.1
- Reconstruction (U.S. history, 1865-1877)1
- Records1
- Rivers and river valleys.1
- Salt industry and trade1
- Schools1
- Secession1