BLE
| Bessemer & Lake Erie | 2 |
BO
| Baltimore & Ohio | 33 |
BR
| Buffalo and Pittsburgh | 2 |
BVRY
| Brandywine Valley Railroad Company | 1 |
CC
| Chicago Central & Pacific | 1 |
CN
| Canadian National Railways | 1 |
CNW
| Chicago & Northwestern | 2 |
CO
| Chesapeake & Ohio | 10 |
CR
| Conrail | 1 |
CSS
| Chicago South Shore And South Bend | 9 |
CSX
| CSX Railroad | 18 |
DMM
| Dansville and Mount Morris Railroad Comp | 1 |
DRGW
| Denver & Rio Grande Western | 1 |
EJE
| Elgin Joliet and Eastern | 4 |
FPTX
| Ferrous Processing and Trading Company | 1 |
IAIS
| Iowa Interstate | 16 |
ICG
| Illinois Central Gulf | 2 |
IHB
| Indiana Harbor Belt | 2 |
LMIC
| Lake Michigan & Indiana Railroad | 2 |
MKC
| McKeesport Connecting Railroad Company | 1 |
MS
| Michigan Shore Railroad Incorporated | 1 |
MWCX
| Midwest Railcar Corporation | 1 |
NOKL
| Northwestern Oklahoma | 3 |
NSAX
| National Steel Corporation | 1 |
NYC
| New York Central | 2 |
POHC
| Pittsburgh & Ohio Central | 1 |
SBD
| Seaboard System | 4 |
SOO
| Soo Line | 1 |
SOU
| Southern | 3 |
TFM
| Kansas City Southern De Mexico | 1 |
TZPR
| Tazewell & Peoria Railroad | 6 |
WC
| Wisconsin Central | 2 |