ARTX
| Artrain | 5 |
ATSF
| Atchison Topeka & Santa Fe | 11 |
BN
| Burlington Northern | 11 |
BRC
| Belt Railway of Chicago | 1 |
CBQ
| Chicago Burlington & Quincy | 11 |
CBRY
| Copper Basin Railway | 1 |
CCT
| Central California Traction Company | 1 |
CGW
| Chicago Great Western | 6 |
CH
| Calumet & Hecla | 1 |
CIC
| Cedar Rapids & Iowa City | 2 |
CNW
| Chicago & Northwestern | 13 |
CR
| Conrail | 2 |
CRIP
| Chicago Rock Island & Pacific | 4 |
CS
| Colorado & Southern | 7 |
DRG
| DRG | 4 |
DRGW
| Denver & Rio Grande Western | 15 |
DSL
| Denver & Salt Lake | 1 |
DSNG
| Durango & Silverton Narrow Gauge Railroa | 1 |
EPRR
| EPRR | 1 |
FDDM
| Fort Dodge Des Moines & Southern | 1 |
GNA
| Graysonia Nashville & Ashdown | 1 |
GWWR
| Gateway Western | 1 |
IATR
| Iowa Traction Railroad Company | 1 |
IC
| Illinois Central | 5 |
LI
| Long Island Rail Road Company | 1 |
LL
| Lionel Lines | 1 |
MILW
| Milwaukee Road | 21 |
MKT
| Missouri-Kansas-Texas | 1 |
MP
| Missouri Pacific | 2 |
MSTL
| Minneapolis & St Louis | 1 |
NP
| Northern Pacific | 1 |
NW
| Norfolk & Western | 1 |
ROCK
| Rock Island | 1 |
SLSF
| Saint Louis-San Francisco | 1 |
SOO
| Soo Line | 3 |
SP
| Southern Pacific | 7 |
TRRA
| Terminal RR of St Louis | 1 |
UP
| Union Pacific Railroad Company | 8 |