BS
| Birmingham Southern RR | 31 |
CP
| Canadian Pacific Railway | 2 |
CR
| Conrail | 91 |
CSS
| Chicago South Shore And South Bend | 5 |
CSX
| CSX Railroad | 2 |
DRGW
| Denver & Rio Grande Western | 4 |
EJE
| Elgin Joliet and Eastern | 13 |
IHB
| Indiana Harbor Belt | 24 |
MP
| Missouri Pacific | 3 |
NS
| Norfolk Southern | 9 |
NSAX
| National Steel Corporation | 30 |
NW
| Norfolk & Western | 39 |
NYC
| New York Central | 4 |
SP
| Southern Pacific | 1 |