AMTK
| Amtrak | 15 |
CBQ
| Chicago Burlington & Quincy | 2 |
DLMX
| Daylight Locomotives and Machine Works Incorporated | 3 |
GN
| Great Northern | 2 |
NRM
| NRM | 1 |
PNWC
| PNWC | 1 |
PPCX
| AAPRCO Register Private Cars | 2 |
RPCX
| Railroad Passenger Car Numbering Bureau | 2 |
SPS
| Spokane Portland & Seattle | 1 |
UPP
| Union Pacific Passenger | 7 |