AMTK
| Amtrak | 8 |
ATSF
| Atchison Topeka & Santa Fe | 6 |
DRGW
| Denver & Rio Grande Western | 2 |
KCS
| Kansas City Southern | 1 |
PPCX
| AAPRCO Register Private Cars | 1 |
SP
| Southern Pacific | 1 |
SPMW
| Southern Pacific Maintenance of Way | 1 |
UP
| Union Pacific Railroad Company | 2 |
UPP
| Union Pacific Passenger | 6 |