Mary Hannigan Hogan (1923- ) grew up in Park Slope, Brooklyn with five siblings. Hogan attended Manual Traning High School, now known John Jay High School. Shortly after graduating from high school, she began working at the Brooklyn Navy Yard as a welder and adding up costs for ship parts. Hogan married in 1944. After leaving the Navy Yard, she worked at various office jobs and moved with her family to Long Island, New York./n/nAnne Mastrion Hannigan (1922- ) grew up in Park Slope, Brooklyn near Mary Hogan. Anne Hannigan married Mary Hogan's brother, Johnny Hannigan, in 1944. Anne Hannigan also attended Manual Training High School, where she learned typing and stenography. Hannigan began work at the Navy Yard around the time of Mary Hogan, working as a lathe operator and reading blueprints to determine the number of parts needed. After leaving the Navy Yard, Anne Hannigan worked in the claims department of Pilgrim Laundry and later moved to Long Island, New York.