The Old Maid's Baby on AllMovie

Baby Marie Osborne was the Shirley Temple of the 1910s. Here she plays Christine, the daughter of a couple of circus performers. Her mother (Marion Werner) is a lady balloonist and her father (Jack Richardson) is a clown. When the circus reaches the mother's home town, she is snubbed by her intellectual sister, Sylvia (Claire DuBrey). Both mother and father die in a parachute drop, and Sylvia reluctantly takes in the orphaned Christine, who then proceeds to work her childlike charm on her uptight aunt. Sylvia, a math whiz, has two sweethearts, Professor Caldwell (William Quinn) and Frank Dodge (Jack Connelly), who is a "regular fellow." It turns out that the professor only loves Sylvia for her mathematical equations, and he tries to steal them and somehow pin the blame on Christine. Dodge unearths the truth, saves Christine, and wins Sylvia's heart.