BCOL
| Canadian National Railways | 1 |
BN
| Burlington Northern | 1 |
CBQ
| Chicago Burlington & Quincy | 3 |
CNA
| Canadian National Railways | 1 |
CNW
| Chicago & Northwestern | 2 |
ELS
| Escanaba and Lake Superior Railroad Comp | 1 |
GN
| Great Northern | 9 |
IC
| Illinois Central | 1 |
MILW
| Milwaukee Road | 1 |
MRL
| Montana Rail Link | 2 |
NOKL
| Northwestern Oklahoma | 2 |
NP
| Northern Pacific | 1 |
PW
| Providence and Worcester | 1 |
SLR
| St Lawrence & Atlantic | 1 |
SNCT
| Seattle & North Coast R.R. Co. | 1 |
SPS
| Spokane Portland & Seattle | 3 |