ATSF
| Atchison Topeka & Santa Fe | 5 |
CBQ
| Chicago Burlington & Quincy | 3 |
CS
| Colorado & Southern | 12 |
DRGW
| Denver & Rio Grande Western | 12 |
GN
| Great Northern | 1 |
HIC
| HIC | 1 |
IC
| Illinois Central | 1 |
IHE
| IHE | 1 |
SAL
| Seaboard Air Line | 1 |
SP
| Southern Pacific | 4 |
SSW
| St Louis Southwestern (Cotton Belt) | 1 |
UP
| Union Pacific Railroad Company | 8 |