1908-1916 - Texas Traction Co.
1916-1948 - Texas Electric Railway
Interurban lines:
Dallas-Sherman (1908-1948)
1908-1916 - Southern Traction Co.
1916-1948 - Texas Electric Railway
Interurban lines:
Dallas-Waco (1914-1948)
Dallas-Corsicana (1914-1941)
Replacement bus companies:
Texas Electric Bus Lines (1948-1979)
Central Texas Bus Lines (1979-1981)
Central Texas Trailways (1981-1999)
Central Texas Trails (1999-2003)
1923-1931 - Texas Interurban Railway Co.
Interurban lines:
Dallas-Terrell (1923-1931)
Dallas-Denton (1924-1931)
Replacement bus companies:
Dixie Trailways (until 1945)
Dixie-Sunshine Trailways (1945-1948)
Continental Trailways (after 1948)