ATSF
| Atchison Topeka & Santa Fe | 1 |
BN
| Burlington Northern | 2 |
BNSF
| BNSF Railway | 2 |
CNW
| Chicago & Northwestern | 2 |
CR
| Conrail | 2 |
EJE
| Elgin Joliet and Eastern | 1 |
GRW
| Gary Railway | 1 |
MKT
| Missouri-Kansas-Texas | 2 |
NS
| Norfolk Southern | 1 |
NW
| Norfolk & Western | 3 |
UP
| Union Pacific Railroad Company | 1 |