CN
| Canadian National Railways | 1 |
CR
| Conrail | 4 |
CSS
| Chicago South Shore And South Bend | 2 |
CSX
| CSX Railroad | 4 |
CTRN
| Union Pacific Railroad Company | 1 |
IC
| Illinois Central | 1 |
NOKL
| Northwestern Oklahoma | 1 |
NS
| Norfolk Southern | 3 |
NYC
| New York Central | 1 |
UP
| Union Pacific Railroad Company | 1 |