BCOL
| Canadian National Railways | 21 |
BS
| Birmingham Southern RR | 5 |
BVRY
| Brandywine Valley Railroad Company | 4 |
EJE
| Elgin Joliet and Eastern | 16 |
GNWR
| Genesee and Wyoming Railroad Company | 2 |
GRW
| Gary Railway | 1 |
IHB
| Indiana Harbor Belt | 3 |
LT
| Lake Terminal Railroad Company | 1 |
MWCX
| Midwest Railcar Corporation | 1 |
NDEM
| NDEM | 1 |
PLE
| Pittsburgh & Lake Erie | 3 |
RFP
| Richmond Fredericksburg & Potomac | 1 |
SH
| Steelton and Highspire Railroad Company | 3 |
SP
| Southern Pacific | 1 |
TM
| Texas-Mexican | 3 |
URR
| Union Railroad | 30 |
USSX
| US Steel | 3 |