AOK
| Arkansas-Oklahoma Railroad | 8 |
CN
| Canadian National Railways | 17 |
CNW
| Chicago & Northwestern | 3 |
CP
| Canadian Pacific Railway | 7 |
CR
| Conrail | 2 |
CSS
| Chicago South Shore And South Bend | 2 |
CSX
| CSX Railroad | 3 |
DLI
| DLI | 1 |
DTI
| Detroit Toledo & Ironton | 2 |
DTS
| Detroit & Toledo ShoreLine | 1 |
GTW
| Grand Trunk Western | 24 |
GVSR
| Galveston Railroad L.P. | 1 |
IC
| Illinois Central | 7 |
ICG
| Illinois Central Gulf | 8 |
MP
| Missouri Pacific | 1 |
NOKL
| Northwestern Oklahoma | 18 |
NYC
| New York Central | 2 |
SSAM
| Sault Ste. Marie Bridge Company (Canadia | 5 |
TR
| Tomahawk Railway L.P. | 5 |
UP
| Union Pacific Railroad Company | 2 |