BCOL
| Canadian National Railways | 7 |
CN
| Canadian National Railways | 1 |
CNW
| Chicago & Northwestern | 2 |
CO
| Chesapeake & Ohio | 2 |
CP
| Canadian Pacific Railway | 18 |
CR
| Conrail | 35 |
CSX
| CSX Railroad | 1 |
DMIR
| Duluth Missabe & Iron Range | 4 |
DRGW
| Denver & Rio Grande Western | 1 |
FEC
| Florida East Coast | 1 |
ICE
| Iowa Chicago and Eastern | 2 |
MP
| Missouri Pacific | 2 |
NS
| Norfolk Southern | 11 |
NW
| Norfolk & Western | 12 |
NYC
| New York Central | 4 |
SOU
| Southern | 5 |
SPMW
| Southern Pacific Maintenance of Way | 1 |