 Mainer named this new band Sons of the Mountaineers . Its initial lineup included Jay Hugh Hall and Clyde Moody as guitarists with Steve Ledford as a fiddler . Among the musicians who would join the group later were Jack and Curly Shelton , Tiny Dodson , Red Rector and Fred Smith . The band got its start performing on the radio and recording songs for Bluebird Records and their first hit , entitled " Sparkling Blue Eyes " was recorded in 1939 . From 1935 through 1941 , Mainer recorded over 165 songs for the record label RCA Victor in various lineups , ranking him among one of the most prolifically recorded country music artists of that period . 
