AMTK
| Amtrak | 8 |
CNW
| Chicago & Northwestern | 2 |
CSX
| CSX Railroad | 1 |
DOTX
| USDOT/Federal Railroad Administration | 1 |
GTLX
| Great Lakes Railcar, Inc. | 2 |
IC
| Illinois Central | 3 |
KCS
| Kansas City Southern | 1 |
MILW
| Milwaukee Road | 2 |
MRLX
| Mid America Rail Car Leasing | 3 |
NKP
| Nickel Plate | 1 |
NW
| Norfolk & Western | 2 |
PPCX
| AAPRCO Register Private Cars | 1 |
PRR
| Pennsylvania Railroad | 1 |
RBBX
| Ringling Bros. and Barnum and Bailey | 1 |
RNRH
| RNRH | 1 |
SLSF
| Saint Louis-San Francisco | 1 |
SOU
| Southern | 2 |
TSCX
| The Steel Company of Canada, Ltd. | 1 |
TVRM
| Tennessee Valley | 1 |
UPP
| Union Pacific Passenger | 3 |