CLC
| Columbia and Cowlitz Railway Company | 1 |
FSR
| Fort Smith Railroad Company | 1 |
KCS
| Kansas City Southern | 1 |
LRWN
| Little Rock & Western | 2 |
MP
| Missouri Pacific | 9 |
SLSF
| Saint Louis-San Francisco | 1 |
TOE
| Texas Oklahoma and Eastern RR Company | 1 |
WC
| Wisconsin Central | 1 |