CN
| Canadian National Railways | 3 |
CNA
| Canadian National Railways | 3 |
CP
| Canadian Pacific Railway | 2 |
CPAA
| Canadian Pacific Railway | 3 |
ETTX
| TTX Company - Autoracks | 78 |
GTW
| Grand Trunk Western | 2 |
SOO
| Soo Line | 1 |
SOU
| Southern | 1 |
SP
| Southern Pacific | 9 |
SSW
| St Louis Southwestern (Cotton Belt) | 8 |
TTGX
| TTX Company-Autoracks | 1 |