ATSF
| Atchison Topeka & Santa Fe | 1 |
CNW
| Chicago & Northwestern | 7 |
DME
| Dakota, Minnesota and Eastern | 3 |
DRGW
| Denver & Rio Grande Western | 4 |
EL
| Erie Lackawanna | 1 |
MP
| Missouri Pacific | 1 |
NS
| Norfolk Southern | 1 |
NYC
| New York Central | 1 |
RBMN
| Reading Blue Mountain & Northern | 1 |
SOU
| Southern | 2 |