That's *Pat Brady,* Roy's sidekick (after Dale Evans) and comedy relief- on his TV show, which was sponsored by Post......on which this ad was originally seen.
That's Pat Brady. He replaced Roy in the Sons of the Pioneers. Then he later became his sidekick. Roy Jr., aka Dusty, said that he and his siblings learned to drive on Nellybelle. The canoe would need a new name now. Note the lack of zip codes.