Subjects
- Physicians -- Michigan.1
- Pianos.1
- Polish Americans.1
- Port Huron (Mich.) -- Street-railroads.1
- Port Huron (Mich.) -- Streets.1
- Postal service.1
- Quarrying.1
- Railroad accidents.1
- Railroad employees.1
- Railroad facilities.1
- Railroad locomotives.1
- Real property -- Michigan -- Detroit -- Maps.1
- Real property -- Michigan -- Maps.1
- Real property -- Ontario -- Windsor -- Maps.1
- Recreation.1
- Research.1
- Resorts -- Michigan -- Isle Royale.1
- Shay (Steam locomotive)1
- Ship accidents.1
- Shipping -- Great Lakes.1