 LaBastille was born in Montclair, New Jersey, the only child of Ferdinand LaBastille, a professor, and Irma Goebel, a concert pianist, stage actress and musician.Her full name was Mariette Anne LaBastille, though she never used her first name.While her date of birth is often listed as Nov 20, 1935, her true date of birth was November 20, 1933, which Valerie J. Nelson of the "Los Angeles Times" discovered while preparing LaBastille's obituary.