Her break came at age 43
Roberta Sherwood (July 1, 1913 – July 5, 1999).
Roberta Sherwood was an American singer who started her career in a vaudeville and nightclub act with her sister, Anne Sherwood. She is notable in part for her sudden rise to fame at the age of 43 when comedian Red Buttons brought columnist Walter Winchell to see her; he gave her rave reviews. Soon she was performing in clubs nationwide and had a contract with Decca Records. She later appeared in several sitcoms during the 1960s.
Sherwood guests on The Donna Reed Show in “Donna Meets Roberta” (Season 4, Episode 33).