ATSF
| Atchison Topeka & Santa Fe | 28 |
BN
| Burlington Northern | 2 |
BNSF
| BNSF Railway | 19 |
DRGW
| Denver & Rio Grande Western | 1 |
GREX
| Georgetown Rail Equipment Company | 5 |
IC
| Illinois Central | 1 |
NS
| Norfolk Southern | 1 |
PACX
| Plasser American Corporation | 2 |
UP
| Union Pacific Railroad Company | 1 |