Clayton McMichen and his Georgia Wildcats ; Jimmie Rodgers ; Carter Family ; Hackberry Ramblers ; Gene Autry ; Monroe Brothers ; Milton Brown and his Brownies ; Blue Sky Boys ; Patsy Montana and the Prairie Ramblers ; Wilf Carter ; Roy Acuff and his Smoky Mountain Boys ; Ted Daffan's Texans ; Harry Choates ; Sons of the Pioneers ; Merle Travis ; Bob Wills and his Texas Playboys ; Johnny Gimble and his jam-session band