While raising four children, Lilli was one of the top experts, independently of her husband involved in the top-secret Manhattan Project in Los Alamos, New Mexico, where the atomic bomb was born. Without her knowledge, the bomb would likely not have been created in time.
Portrait photo of Lilli Hornig from a Los Alamos National Laboratory ID card. National Museum of Nuclear Science & History, Albuquerque, New Mexico, and Atomic Heritage Foundation, Washington, DC.