This child star of the 1940s was best known for her natural, emotional style and her startling facility for tears. As Maxine O'Brien (her birth name), she first appeared in a civil defense film starring James Cagney, then in a bit in "Babes on Broadway" (both 1941). Sensing her potential, MGM signed her, changed her first name to Margaret and starred her in the tour de force "Journey for Margaret" (1942), as a terrified London war orphan who "adopts" reporter Robert Young. It was an adult, intelligent and slightly scary performance which made her an overnight star. The studio didn't quite know what to do with her after that as she wasn't an adorable Shirley Temple type. She was loaned out to Fox for "Jane Eyre" (1944) and was pretty much wasted in such MGM films as "Dr. Gillespie's Criminal Case," "Lost Angel" and "Madame Curie" (all 1943), although she had a slightly better part in "The Canterville Ghost" (1944), opposite Charles Laughton.