Names
- Phi Mu Alpha Sinfonia Fraternity of America. Epsilon Chapter (University of Michigan)1
- Pontiac, Oxford and Northern Railroad Company.1
- Port Huron and North Western Railway Company.1
- Rio Grande Southern Railroad.1
- Rothschild, Sigmund, 1837-1907.1
- Saginaw Valley and St. Louis Railroad Company.1
- Saginaw, Tuscola and Huron Railroad Company.1
- Saldern Logging Company.1
- Seaman & Webster.1
- Section Two Mining Company.1
- Shay, Ephraim, 1839-1916.1
- Solvay Process Company.1
- Soo Line Railroad Company.1
- South Haven and Eastern Railroad Company.1
- Southern Pacific Railroad Company.1
- Southern Railway (U.S.)1
- St. Clair Tunnel Company.1
- Staples & Covell.1
- Stoner, Claude Thomas, 1899-1977.1
- Stoner, Claude Thomas.1