ATSF
| Atchison Topeka & Santa Fe | 1 |
CNW
| Chicago & Northwestern | 1 |
CSX
| CSX Railroad | 4 |
DRGW
| Denver & Rio Grande Western | 1 |
HCSX
| Helm Chesapeake LLP | 1 |
HLMX
| Helm Financial Corporation | 1 |
HPJX
| Helm-Pacific Leasing | 1 |
MP
| Missouri Pacific | 2 |
NS
| Norfolk Southern | 1 |
NYC
| New York Central | 1 |
PAL
| Paducah & Louisville | 3 |
PSR
| Pittsburg and Shawmut Railroad Incorporated | 1 |