ALAB
| Alabama Railroad | 1 |
ATSF
| Atchison Topeka & Santa Fe | 15 |
BLE
| Bessemer & Lake Erie | 1 |
BN
| Burlington Northern | 4 |
CBQ
| Chicago Burlington & Quincy | 9 |
CGW
| Chicago Great Western | 1 |
CNSM
| CHICAGO NORTH SHORE & MILWAUKEE RWY | 1 |
CO
| Chesapeake & Ohio | 1 |
CR
| Conrail | 7 |
CSL
| Chicago Short Line Railway Company | 1 |
CSS
| Chicago South Shore And South Bend | 10 |
CSX
| CSX Railroad | 1 |
EJE
| Elgin Joliet and Eastern | 3 |
EL
| Erie Lackawanna | 1 |
GTW
| Grand Trunk Western | 1 |
IC
| Illinois Central | 2 |
IHB
| Indiana Harbor Belt | 1 |
JJRR
| J and J Railroad | 1 |
LI
| Long Island Rail Road Company | 1 |
METX
| METRA | 1 |
MILW
| Milwaukee Road | 1 |
MON
| Monon Route | 2 |
MP
| Missouri Pacific | 3 |
NKP
| Nickel Plate | 4 |
NW
| Norfolk & Western | 1 |
NYC
| New York Central | 3 |
PREX
| Pioneer Rail Equipment | 1 |
SOO
| Soo Line | 1 |
SP
| Southern Pacific | 2 |
UP
| Union Pacific Railroad Company | 1 |