CNW
| Chicago & Northwestern | 1 |
CP
| Canadian Pacific Railway | 1 |
GPSX
| Georgia-Pacific Corporation Eastern Wood Products Mfg.Divisi | 1 |
HTTX
| TTX Company | 3 |
JTTX
| TTX Company | 2 |
MKT
| Missouri-Kansas-Texas | 1 |
MTTX
| TTX Company | 1 |
PTTX
| TTX Company | 1 |
QTTX
| TTX Company | 1 |
RTTX
| TTX Company | 1 |
SOU
| Southern | 1 |
STTX
| TTX Company | 1 |
TPAX
| TPAX | 1 |