ARR
| Alaska Railroad | 1 |
ATLT
| Austin Todd and Ladd Railroad Company | 1 |
ATSF
| Atchison Topeka & Santa Fe | 11 |
AUAR
| Austin Area Terminal Railway | 1 |
AUUR
| AUUR | 1 |
BN
| Burlington Northern | 13 |
CBQ
| Chicago Burlington & Quincy | 4 |
CN
| Canadian National Railways | 1 |
CO
| Chesapeake & Ohio | 2 |
CRIP
| Chicago Rock Island & Pacific | 1 |
CS
| Colorado & Southern | 5 |
DRGW
| Denver & Rio Grande Western | 6 |
DSBR
| DSBR | 1 |
DSNG
| Durango & Silverton Narrow Gauge Railroa | 1 |
FWD
| Fort Worth & Denver | 1 |
GMRC
| Green Mountain RR | 1 |
GN
| Great Northern | 1 |
GSMR
| Great Smoky Mountains | 1 |
GTR
| Great River Railroad; d/b/a Rosedale-Bolivar County Port Comm | 1 |
IC
| Illinois Central | 3 |
ICG
| Illinois Central Gulf | 1 |
JFSX
| Jfs Railcar | 3 |
KCS
| Kansas City Southern | 2 |
LN
| Louisville & Nashville | 2 |
LNE
| Lehigh and New England Ry | 1 |
LV
| Lehigh Valley | 2 |
MILW
| Milwaukee Road | 1 |
MKT
| Missouri-Kansas-Texas | 6 |
MP
| Missouri Pacific | 8 |
MWE
| MWE | 1 |
NKP
| Nickel Plate | 1 |
NS
| Norfolk Southern | 1 |
NSRM
| NSRM | 1 |
NYC
| New York Central | 1 |
PAL
| Paducah & Louisville | 1 |
PWV
| Pittsburgh & West Virginia | 1 |
RPCX
| Railroad Passenger Car Numbering Bureau | 1 |
SLSF
| Saint Louis-San Francisco | 6 |
SOO
| Soo Line | 1 |
SOU
| Southern | 2 |
SP
| Southern Pacific | 5 |
TSRR
| Tennessee Southern | 1 |
UP
| Union Pacific Railroad Company | 17 |
URC
| URC | 1 |
WTLC
| West Texas & Lubbock Railroad Co Inc. | 1 |