When Did Jack Rube Clifford Die?

Jack Clifford, also known as Jack "Rube" Clifford, was an American character actor and singer in vaudeville, theater, film, and radio, who became known for portraying rustic, unsophisticated characters, whose radio work—or, more specifically, whose vaudeville character "The Sheriff" —has, in the 21st century, come to be regarded by at least some radio historians as the original inspiration for Robert McKimson's and Mel Blanc's anthropomorphic cartoon rooster, Foghorn Leghorn.