AOK
| Arkansas-Oklahoma Railroad | 9 |
ATW
| Atlantic and Western | 1 |
CHTT
| Chicago Heights Terminal Transfer | 6 |
CLC
| Columbia and Cowlitz Railway Company | 4 |
CN
| Canadian National Railways | 1 |
CORP
| Central Oregon & Pacific | 1 |
CP
| Canadian Pacific Railway | 1 |
HLSC
| Hampton Railway Incorporated | 1 |
IC
| Illinois Central | 1 |
LW
| Louisville and Wadley Railway Company | 2 |
MMA
| Montreal, Maine & Atlantic | 2 |
MR
| McCloud Railway Company | 2 |
NOKL
| Northwestern Oklahoma | 2 |
SERA
| Sierra Northern Railway | 2 |
SOO
| Soo Line | 1 |
TKEN
| Tennken Railroad Company Incorporated | 2 |
TR
| Tomahawk Railway L.P. | 1 |
TTZX
| TTX Company-Centerbeam Flats | 25 |
UP
| Union Pacific Railroad Company | 7 |
WC
| Wisconsin Central | 1 |
WCRC
| Washington Central | 1 |