ATSF
| Atchison Topeka & Santa Fe | 1 |
CNW
| Chicago & Northwestern | 17 |
CR
| Conrail | 4 |
CSX
| CSX Railroad | 1 |
GTW
| Grand Trunk Western | 3 |
IC
| Illinois Central | 1 |
MKT
| Missouri-Kansas-Texas | 1 |
MP
| Missouri Pacific | 5 |
NS
| Norfolk Southern | 15 |
NSAX
| National Steel Corporation | 2 |
NW
| Norfolk & Western | 15 |
NYC
| New York Central | 2 |
UP
| Union Pacific Railroad Company | 5 |