BN
| Burlington Northern | 1 |
CGW
| Chicago Great Western | 1 |
CN
| Canadian National Railways | 1 |
CNW
| Chicago & Northwestern | 1 |
CP
| Canadian Pacific Railway | 2 |
ELS
| Escanaba and Lake Superior Railroad Comp | 2 |
GN
| Great Northern | 2 |
MILW
| Milwaukee Road | 3 |
MNS
| Minneapolis Northfield & Southern | 1 |
MSTL
| Minneapolis & St Louis | 1 |
SOO
| Soo Line | 1 |
SRC
| Strasburg Railroad | 1 |