Mary Pickford began in the theater at age six. Then known as "Baby Gladys Smith", she toured with her family in a number of theater companies. In 1907, she adopted a family name Pickford and joined the David Belasco troupe, appearing in the long-running The Warrens of Virginia". She began in films in 1909 with the 'American Mutoscope & Biograph [us]'...See full bio »