Bruner was born in Texas City, Texas, and spent most of his childhood near Houston. He learned to play fiddle, and traveled with medicine shows to begin his musical career. Milton Brown's Musical Brownies drafted Bruner in 1935. Bruner played with the ensemble's classically trained fiddler Cecil Brower to create the memorable double fiddle sound of Milton Brown's group. Bruner recorded with Brown's group on the Decca music label, until Brown was killed in an automobile accident in 1936. This ended Bruner's involvement in the group.
