Additional bus companies, listed as existing during 1930's, are mentioned in the WPA American Guide Series of state guidebooks.
Suburban and interurban bus companies listed in the Russell's Official National Motor Coach Guide, which was primarily a resource for intercity bus lines.
Mooney Motor Coaches (to McKinney and Greenville and Bonham and Sherman, 1930-1955)
Birdsville Bus Co. - served Birdsville, Oak Knoll, Haltom City.
Community Bus Service Co. - served Fort Worth and suburbs.
Dallas-Celina-Sherman Bus Lines - existed in 1930's.
Jefferson Bus Lines - served Dallas, Grand Prairie, Arlington, Fort Worth.
Decatur-Jacksboro Bus Line - served Denton, Decatur, Jacksboro.
Grimes Motor Coaches - served Hillsboro, Peoria, Whitney.
Hillsboro-Mexia Bus Line - based in Hillsboro, served Malone, Hubbard, Mexia.