Her elder sister, Gloria, is an actor. Geraldine, who was named after Metropolitan Opera's most famous diva of the era, Geraldine Farrar, took dancing classes from the age of two and attended the all-girls Hunter Modeling School and graduated in 1942 from Julia Richman High School, where she was president of the drama club.
Geraldine's older sister, Gloria, is a performer. Geraldine was named after the prominent opera singer Geraldine Farrar and began taking dance lessons at two, then attended an all-girls modeling school before graduating from Julia Richman High School in 1942, where she led the drama club.