AOK
| Arkansas-Oklahoma Railroad | 2 |
ATSF
| Atchison Topeka & Santa Fe | 1 |
ATW
| Atlantic and Western | 3 |
CMO
| Chicago St Paul Minneapolis & Omaha | 1 |
CN
| Canadian National Railways | 1 |
CNA
| Canadian National Railways | 2 |
CNW
| Chicago & Northwestern | 1 |
CP
| Canadian Pacific Railway | 1 |
CPAA
| Canadian Pacific Railway | 2 |
SLSF
| Saint Louis-San Francisco | 2 |
TTXG
| TTXG | 1 |