ATSF
| Atchison Topeka & Santa Fe | 6 |
BN
| Burlington Northern | 5 |
BO
| Baltimore & Ohio | 2 |
CGW
| Chicago Great Western | 2 |
CNW
| Chicago & Northwestern | 11 |
CO
| Chesapeake & Ohio | 1 |
CR
| Conrail | 1 |
CS
| Colorado & Southern | 1 |
FWD
| Fort Worth & Denver | 1 |
GBW
| Green Bay & Western | 1 |
GMO
| Gulf Mobile & Ohio | 2 |
GWAX
| Railroad Salvage and Restoration Incorporated | 1 |
LN
| Louisville & Nashville | 1 |
MILW
| Milwaukee Road | 4 |
MNS
| Minneapolis Northfield & Southern | 1 |
MP
| Missouri Pacific | 6 |
NW
| Norfolk & Western | 1 |
SBD
| Seaboard System | 1 |
SCL
| Seaboard Coast Line | 1 |
SLSF
| Saint Louis-San Francisco | 9 |
SOO
| Soo Line | 9 |
SP
| Southern Pacific | 3 |
WC
| Wisconsin Central | 4 |