AA
| Ann Arbor | 6 |
ATSF
| Atchison Topeka & Santa Fe | 1 |
BBCX
| ABB Power Generation Incorporated | 1 |
BLE
| Bessemer & Lake Erie | 1 |
BN
| Burlington Northern | 1 |
BO
| Baltimore & Ohio | 3 |
BPRR
| Buffalo and Pittsburgh | 3 |
CNW
| Chicago & Northwestern | 1 |
CO
| Chesapeake & Ohio | 11 |
CR
| Conrail | 5 |
CSS
| Chicago South Shore And South Bend | 4 |
CSX
| CSX Railroad | 19 |
DODX
| Department Of Defense | 2 |
DTI
| Detroit Toledo & Ironton | 1 |
EJE
| Elgin Joliet and Eastern | 3 |
EL
| Erie Lackawanna | 1 |
GTW
| Grand Trunk Western | 4 |
HESR
| Huron and Eastern | 1 |
IAIS
| Iowa Interstate | 2 |
IC
| Illinois Central | 1 |
IHB
| Indiana Harbor Belt | 2 |
KRL
| Kasgro Rail Lines | 1 |
METX
| METRA | 1 |
MILW
| Milwaukee Road | 1 |
MP
| Missouri Pacific | 1 |
MQT
| Marquette Rail | 3 |
MSO
| Michigan Southern | 2 |
NKP
| Nickel Plate | 2 |
NS
| Norfolk Southern | 2 |
NW
| Norfolk & Western | 2 |
NYC
| New York Central | 3 |
PM
| Pere Marquette | 10 |
SOO
| Soo Line | 3 |
UP
| Union Pacific Railroad Company | 3 |
URR
| Union Railroad | 4 |
WC
| Wisconsin Central | 2 |
WE
| Wheeling & Lake Erie | 1 |