BNSF
| BNSF Railway | 2 |
CGW
| Chicago Great Western | 1 |
CNW
| Chicago & Northwestern | 3 |
CP
| Canadian Pacific Railway | 2 |
CR
| Conrail | 7 |
DL
| Delaware-Lackawanna Railroad Company | 2 |
EL
| Erie Lackawanna | 1 |
GREX
| Georgetown Rail Equipment Company | 5 |
HMIX
| Henkels and McCoy Inc | 5 |
HZGX
| Herzog Contracting Corporation | 1 |
IC
| Illinois Central | 1 |
NS
| Norfolk Southern | 14 |
NW
| Norfolk & Western | 7 |
SOU
| Southern | 2 |
SPSX
| Progress Rail Services Corp | 1 |
UP
| Union Pacific Railroad Company | 2 |