AGR
| Alabama and Gulf Coast | 2 |
AN
| Apalachicola Northern | 1 |
ATW
| Atlantic and Western | 1 |
BM
| Boston & Maine | 1 |
BN
| Burlington Northern | 1 |
CC
| Chicago Central & Pacific | 4 |
CIC
| Cedar Rapids & Iowa City | 2 |
CMHX
| CarMath Incorporated | 4 |
CNA
| Canadian National Railways | 2 |
CNW
| Chicago & Northwestern | 2 |
CSX
| CSX Railroad | 3 |
CV
| Central Vermont | 1 |
CVC
| Canadian National Railways | 1 |
DME
| Dakota, Minnesota and Eastern | 3 |
DRGW
| Denver & Rio Grande Western | 2 |
DWC
| Canadian National Railways | 1 |
EEC
| East Erie Commercial Railroad | 1 |
FSR
| Fort Smith Railroad Company | 1 |
FXE
| Ferromex | 2 |
GATX
| General American Marks Company | 1 |
GTW
| Grand Trunk Western | 4 |
HATX
| Helm Financial Corporation | 2 |
HCGX
| COMPASS MINERALS INTERNATIONAL INC | 1 |
HLMX
| Helm Financial Corporation | 1 |
IAIS
| Iowa Interstate | 1 |
IATR
| Iowa Traction Railroad Company | 2 |
IC
| Illinois Central | 3 |
ICE
| Iowa Chicago and Eastern | 4 |
ICG
| Illinois Central Gulf | 6 |
IMRL
| I&M Rail Link | 4 |
KCS
| Kansas City Southern | 1 |
LBR
| Lowville and Beaver River Railroad Compa | 1 |
LW
| Louisville and Wadley Railway Company | 1 |
MDW
| Minnesota Dakota and Western Railway Com | 1 |
MEC
| Maine Central | 3 |
MET
| Modesto and Empire Traction Company | 1 |
MILW
| Milwaukee Road | 4 |
MNNR
| Minnesota Commercial | 1 |
MP
| Missouri Pacific | 1 |
MRL
| Montana Rail Link | 8 |
NS
| Norfolk Southern | 2 |
NW
| Norfolk & Western | 2 |
ONT
| Ontario Northland Railway | 1 |
QC
| Quebec Central | 1 |
RPMX
| RPMG INC | 3 |
SCL
| Seaboard Coast Line | 1 |
SIRX
| Southern Illinois Railcar Company | 1 |
SOO
| Soo Line | 7 |
SOU
| Southern | 1 |
SP
| Southern Pacific | 2 |
SRN
| Sabine River & Northern | 1 |
SSW
| St Louis Southwestern (Cotton Belt) | 1 |
TOFX
| TTX Company - Box Cars | 1 |
UP
| Union Pacific Railroad Company | 2 |
WC
| Wisconsin Central | 2 |
WP
| Western Pacific | 2 |
WSOR
| Wisconsin & Southern | 14 |
YARR
| Youngstown and Austintown Railroad | 1 |