Wentworth had a long radio career that began in the early 1920s. Listeners recognised her as The Wintergreen Witch on The Cinnamon Bear radio program (1937), Annie Wood and Mrs. Littlefield on Crime Classics (1953), and Ma Danields on The Gallant Heart (1944). She portrayed Joe Penner's mother on The Park Avenue Penners. She also had semi-regular roles on Broadway Is My Beat, On Stage, The Witch's Tale, The Baby Snooks Show, and The Abbott and Costello Show.
She later became a film Actress in the 1940s, starring in several Red Ryder Western films. She worked as a voice Artist for Walt Disney Studios; as Nanny, Queenie the Cow and Lucy the Goose in One Hundred and One Dalmatians (1961) and as Madame Mim in The Sword in the Stone (1963), her final credited film appearance. She died in 1974 at age 84.
