| 1 | T&G | Tremont & Gulf Ry. (Co.) | 8/1920-4/1970 | | NAKINA |
| 2 | T&G | Tremont & Gulf Ry. | 4/38-4/70 | | NRHS |
| 3 | T&G | TREMONT & GULF RAILWAY CO. | | | PWRC |
| 4 | T&NO | Texas & New Orleans R.R. (Southern Pacific Lines in Texas and Louisiana) | 8/1920-7/1936 | | NAKINA |
| 5 | T&NO | Texas & New Orleans R.R. | 4/1938-4/1961 | | NAKINA |
| 6 | T&NO | Southern Pacific Co. (Texas and Louisiana Lines) | 7/1965 | | NAKINA |
| 7 | T&NO | Texas and New Orleans R.R. Co. (Southern Pacific Co.) | 10/1966 | | NAKINA |
| 8 | T&NO | Texas & New Orleans R.R. | 4/38-4/61 | | NRHS |
| 9 | T&NO | Southern Pacific Co. (Texas and Louisiana Lines) | Jul-65 | | NRHS |
| 10 | T&NO | Texas and New Orleans R.R. Co. (Southern Pacific Co.) | Oct-66 | | NRHS |
| 11 | T&NO | UNION PACIFIC RAILROAD [SOUTHERN PACIFIC TRANSP. CO.; TEXAS & NEW ORLEANS RR] | | | PWRC |
| 12 | T&P | Texas & Pacific Ry. | 8/1920-4/1970 | | NAKINA |
| 13 | T&P | Texas & Pacific Ry. | 4/38-4/70 | | NRHS |
| 14 | T&P | TEXAS & PACIFIC RY | | | PWRC |
| 15 | T&W | The Toledo and Western Ry. Co. | 8/1920-7/1932 | | NAKINA |
| 16 | T&W | TOLEDO & WESTERN RWY. CO. | | | PWRC |
