Shenandoah Valley Railroad
Shenandoah Valley Railway Company
Shore Line Railroad.
Sodus Point and Southern Railroad.
South Carolina Canal and Railroad Company
South Pacific Railroad Company of Missouri.
Southern Continental Railroad.
Southern Express Company.
Southern Maryland Railroad.
Southern Pacific Railroad Company
Southern Railway (U.S.)
Stanstead, Shefford, and Chambly Railroad.
Sunbury and Erie Rail Road Company
Tennessee, Alabama, and Georgia Railroad.
Terre Haute and Richmond Railroad
Texas & Pacific Railway
Texas and New Orleans Air Line Rail Line.
Texas and New Orleans Railroad Company.
Through Traffic Railway.
Toledo, Ann Arbor, and Grand Truck Railway.
Toledo, Ann Arbor, and North Michigan Railway Company
Toledo, Cincinnati, and St. Louis Railroad Company
Toledo, Peoria & Warsaw Railway.
Toledo, Wabash, and Great Western Railroad.
Tyrone and Lock Haven Railroad Company
Union Pacific Railroad Company
Union Pacific Railway Company
Virginia Central Railroad Company
Virginia and Tennessee Railroad Company
Virginia, Kentucky, and Ohio Railroad.
Virginia, Tennessee, and Georgia Air Line Railroad.
Washington City and Point Lookout Railroad.
Washington and Atlantic Railroad.
Washington and Ohio Railroad Company
Washington and St. Mary's Railroad.
West Philadelphia Rail Road Company
West Virginia Midland Railroad.
Western Vermont Railroad.
Western and Atlantic Railroad Company
Wheeling and Cincinnati Mineral Railway.
Williamsport and Elmira Railroad Company
Winchester and Potomac Railroad Company
Wisconsin Central Railroad Company (1871-1899)