AERC
| Albany and Eastern Railroad Company | 2 |
ALAB
| Alabama Railroad | 4 |
BKTY
| Union Pacific Railroad Company | 3 |
BN
| Burlington Northern | 1 |
CBQ
| Chicago Burlington & Quincy | 1 |
CGW
| Chicago Great Western | 2 |
CNW
| Chicago & Northwestern | 1 |
HLMX
| Helm Financial Corporation | 1 |
HWCX
| Halliburton Company | 1 |
IC
| Illinois Central | 2 |
ICG
| Illinois Central Gulf | 1 |
MDW
| Minnesota Dakota and Western Railway Com | 3 |
MILW
| Milwaukee Road | 7 |
MRMX
| Midwest Railcar Corporation | 1 |
NS
| Norfolk Southern | 1 |
PE
| Peoria & Eastern | 1 |
SCL
| Seaboard Coast Line | 1 |
SLSF
| Saint Louis-San Francisco | 19 |
SOU
| Southern | 3 |
SP
| Southern Pacific | 4 |
WC
| Wisconsin Central | 1 |
WLO
| Waterloo Railway Company (Illinois Central) | 1 |
WP
| Western Pacific | 2 |