ADBF
| Adrian and Blissfield Rail Road Company | 4 |
ADIX
| Adirondack Railway Preservation Society | 1 |
AMTK
| Amtrak | 30 |
BAR
| Bangor & Aroostook | 1 |
BHC
| Black Hills Central | 1 |
BLRX
| BLRX | 1 |
BO
| Baltimore & Ohio | 4 |
CBQ
| Chicago Burlington & Quincy | 3 |
CN
| Canadian National Railways | 3 |
CNJ
| Central Rail Road of New Jersey | 1 |
CNW
| Chicago & Northwestern | 6 |
CO
| Chesapeake & Ohio | 3 |
CP
| Canadian Pacific Railway | 1 |
CRC
| CRC | 4 |
DLMX
| Daylight Locomotives and Machine Works Incorporated | 1 |
DM
| Detroit & Mackinac | 1 |
GN
| Great Northern | 1 |
GOLD
| GOLD | 1 |
GSF
| Georgia Southern and Florida Railway Company | 2 |
GTW
| Grand Trunk Western | 3 |
IC
| Illinois Central | 2 |
KCS
| Kansas City Southern | 2 |
LN
| Louisville & Nashville | 2 |
LSE
| LSE | 1 |
MILW
| Milwaukee Road | 3 |
MSTX
| MSTX | 8 |
NKP
| Nickel Plate | 4 |
NP
| Northern Pacific | 7 |
NW
| Norfolk & Western | 2 |
NYC
| New York Central | 10 |
OE
| Oregon Electric | 1 |
PLE
| Pittsburgh & Lake Erie | 3 |
PM
| Pere Marquette | 1 |
PRR
| Pennsylvania Railroad | 4 |
RBMN
| Reading Blue Mountain & Northern | 2 |
RPCX
| Railroad Passenger Car Numbering Bureau | 11 |
SLSF
| Saint Louis-San Francisco | 1 |
SLU
| SLU | 1 |
SOU
| Southern | 8 |
SP
| Southern Pacific | 3 |
SPP
| SPP | 1 |
TSCX
| The Steel Company of Canada, Ltd. | 5 |
TVRM
| Tennessee Valley | 2 |
UP
| Union Pacific Railroad Company | 6 |
UPP
| Union Pacific Passenger | 3 |
USAX
| United States Army | 2 |