Helen Sullivan Gagliardi (1925- ) grew up in Brooklyn. She was given her mother's last name (Sullivan) because her mother returned to her maiden name after getting a divorce because it was easier for unmarried women to find work during the Depression. Gagliardi attended PS203 in Brooklyn and then Saint Brendan's (Midwood, Brooklyn) for high school. She studied Chemistry at Brooklyn College where she earned a Master's and PhD, finishing all but her dissertation. She worked in the Brooklyn Navy Yard's chemistry lab from 1944-1945 when the war ended. After marrying, Gagliardi went on to teach science at PS208, an elementary school with a program for gifted students, from the 1960s until she retired in 1984. Upon retiring, she moved to California, near San Diego, where one of her two daughters lives. The Brooklyn Historical Society connected with Gagliardi because her other daughter, who lives in Boston, took her on the Brooklyn Navy Yard tour lead by Urban Oyster.