CPWX
| Canadian Wheat Board | 2 |
CRDX
| Chicago Freight Car Leasing Company | 1 |
CSX
| CSX Railroad | 4 |
FURX
| First Union Rail | 1 |
GFSX
| General American Marks Company | 1 |
ITLX
| General Electric Rail Services | 1 |
LN
| Louisville & Nashville | 1 |
MP
| Missouri Pacific | 1 |
NW
| Norfolk & Western | 1 |
NYC
| New York Central | 1 |
RFP
| Richmond Fredericksburg & Potomac | 1 |
SLSF
| Saint Louis-San Francisco | 2 |