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Known as the “First Lady of Engineering,” Lillian Gilbreth was massively successful with her education, career, and as a loving mother of 12!

Applying a scientific method to her work that is still used today for workplace efficiency and management, Gilbreth also took part in consulting for the government during the Great Depression and WWII.

Gilbreth invented both the shelving in refrigerator doors and the foot pedal trash can. Her application of science to the construction industry let to a rise in productivity that is still observed today!

Citation: Hall, Sharon. “Mothers of Invention: Lillian Moller Gilbreth.” Digging History, 14 July 2019,