Thelma Boardman: Thelma Boardman. Writer: Gunsmoke. Thelma Boardman was born on 31 October 1909 in Panama Canal Zone, Panama. She was an actress and writer, known for Gunsmoke (1955), Ethel Barrymore Theater (1956) and Mother Goose Goes Hollywood (1938). She was married to True Boardman and Russell Erwin Diehl. She died on 21 April 1978 in Los Angeles, California, USA.
Known For: Gunsmoke (Writer), Ethel Barrymore Theater (Writer(as Thelma Hubbard)), Mother Goose Goes Hollywood (Actress(voice)), Walt Disney's Cartoon Carousel (Minnie Mouse)