ATSF
| Atchison Topeka & Santa Fe | 17 |
BLE
| Bessemer & Lake Erie | 1 |
BN
| Burlington Northern | 3 |
BNSF
| BNSF Railway | 1 |
CN
| Canadian National Railways | 1 |
DME
| Dakota, Minnesota and Eastern | 1 |
IC
| Illinois Central | 1 |
ICG
| Illinois Central Gulf | 1 |
MKT
| Missouri-Kansas-Texas | 1 |
MP
| Missouri Pacific | 1 |
SOO
| Soo Line | 1 |
WC
| Wisconsin Central | 1 |