ATSF
| Atchison Topeka & Santa Fe | 1 |
BM
| Boston & Maine | 4 |
BN
| Burlington Northern | 3 |
BNSF
| BNSF Railway | 5 |
CC
| Chicago Central & Pacific | 4 |
CN
| Canadian National Railways | 4 |
CO
| Chesapeake & Ohio | 1 |
CP
| Canadian Pacific Railway | 3 |
CS
| Colorado & Southern | 3 |
DL
| Delaware-Lackawanna Railroad Company | 1 |
FGLK
| Finger Lakes Railway | 1 |
IAIS
| Iowa Interstate | 1 |
ME
| Morristown & Erie Railroad | 1 |
MEC
| Maine Central | 1 |
NP
| Northern Pacific | 2 |
PAR
| PAR | 1 |
SRC
| Strasburg Railroad | 1 |
UP
| Union Pacific Railroad Company | 8 |