ATSF
| Atchison Topeka & Santa Fe | 1 |
BNA
| Burlington Northern Business Cars | 1 |
BNSF
| BNSF Railway | 21 |
IAIS
| Iowa Interstate | 3 |
IC
| Illinois Central | 1 |
KCS
| Kansas City Southern | 3 |
PPCX
| AAPRCO Register Private Cars | 4 |
RBBX
| Ringling Bros. and Barnum and Bailey | 1 |
SP
| Southern Pacific | 3 |