AOK
| Arkansas-Oklahoma Railroad | 31 |
ATSF
| Atchison Topeka & Santa Fe | 5 |
ATW
| Atlantic and Western | 4 |
CMO
| Chicago St Paul Minneapolis & Omaha | 1 |
CN
| Canadian National Railways | 21 |
CNA
| Canadian National Railways | 40 |
CP
| Canadian Pacific Railway | 51 |
CPAA
| Canadian Pacific Railway | 13 |
FEC
| Florida East Coast | 4 |
GTW
| Grand Trunk Western | 20 |
KCSM
| Kansas City Southern De Mexico | 2 |
RBBX
| Ringling Bros. and Barnum and Bailey | 1 |
SOU
| Southern | 3 |
SP
| Southern Pacific | 15 |
SSW
| St Louis Southwestern (Cotton Belt) | 11 |