ATSF
| Atchison Topeka & Santa Fe | 10 |
CBQ
| Chicago Burlington & Quincy | 4 |
CRIP
| Chicago Rock Island & Pacific | 1 |
CS
| Colorado & Southern | 10 |
CVL
| CUYHOGA VALLEY LINE RAILROAD | 2 |
DRG
| DRG | 3 |
DRGW
| Denver & Rio Grande Western | 10 |
GN
| Great Northern | 3 |
HIC
| HIC | 1 |
IC
| Illinois Central | 1 |
MILW
| Milwaukee Road | 1 |
NYC
| New York Central | 3 |
PRR
| Pennsylvania Railroad | 2 |
SAL
| Seaboard Air Line | 1 |
SLSF
| Saint Louis-San Francisco | 2 |
SOU
| Southern | 1 |
SP
| Southern Pacific | 5 |
UP
| Union Pacific Railroad Company | 10 |