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.