My Three Sons
1960
Donna Corcoran is an American former child actress who appeared in nine Hollywood films from 1951 through 1955. She was in two aquatic musicals that featured Esther Williams (portraying swimmer Annette Kellerman as a child in one), and as a vulnerable girl being victimized by an emotionally disturbed babysitter (played by Marilyn Monroe) in Don't Bother to Knock. Wikipedia