The Little Diplomat (1919)

Antiques collector Bradley West agrees to adopt Little Marie, a French war orphan, to please his wife. Marie and a servant's son, George Washington Jones, Jr., irritate Bradley with their mischief until he hires Hulda, a governess who objects to Marie's friendship with a Black child. Marie attempts to placate Hulda by whitewashing George, then presents him at a tea party and shocks the guests. Bradley's nephew and secretary, Trent Gordon, befriends Marie and she assists him in overcoming difficulties with his girlfriend, Phyllis Dare. Unbeknown to the West family, Hulda, alias "Chicago Hattie," is in league with a gang of thieves led by Raymond Brownleigh, intent on robbing Bradley's safe. On the night of the burglary, the noise awakens Marie and she locks Brownleigh in the safe. Before the thief can make his escape, Trent captures the entire gang. Marie's courage and resourcefulness win her the love of her foster father.