How Did Walter Tetley Die?

Walter Tetley was an American actor specializing in child impersonation during radio's classic era. He had regular roles as Leroy Forrester on The Great Gildersleeve and Julius Abbruzzio on The Phil Harris-Alice Faye Show, as well as continuing as a voice-over artist in animated cartoons, commercials, and spoken-word record albums. He is perhaps best known as the voice of Sherman in the Jay Ward-Bill Scott Mr. Peabody TV cartoons.