Oliver Hood was a millworker and part-time music teacher from La Grange, GA. Mostly associated with governor Jimmie Davis and even credited to him.
Rice Brothers Gang [with own credits; Charles Mitchell, steel guitar player with Jimmie Davis, asked Paul Rice to sell his (non existing) rights (for $35); Rice, always in debt, accepted; easy money]
Tex Ritter [in film Take Me Back To Old Oklahoma]
Jimmie Davis [C&W star turned governor of Louisiana twice ('44-'48 and '60-'64), using You Are My Sunshine as his campaign song]
Gene Autry [n°1 C&W]
Roberto Delgado [alias Horst Wende]
Ray Charles [n°1 R&B]
Norman Blake [in film O Brother, Where Art Thou? during scenes with a campaigning politician just like Jimmie Davis]
Brian Wilson [on Smile]
Riders In The Sky [on Gene Autry tribute]
The Statler Brothers had a n°1 C&W in '78 with Do You Know You Are My Sunshine.