9 year old Lauren Bacall. Lauren Bacall was born Betty Joan Perske on 9/16/1924, in the Bronx, New York City. She was the only child of Natalie Weinstein-Bacal, a secretary, and William Perske, who worked in sales. Her parents divorced when she was five, and she took the Romanian form of her mother's last name, Bacall. Bacall no longer saw her father and formed a close bond with her mother, whom she took with her to California when she became a movie star.