National Museum of Nuclear Science & History
Leroy Hartmann (1922 – 1944) was an electrical engineer in the Special Engineer Detachment Manhattan District CE in Oak Ridge.
Ruth Rottman was a laboratory technician in the Health Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Menges was an Area Engineer and Area Supervisor at the Hanford Engineer Works. He was in the US Navy (USNR) until June of 1943 when he was injured in an explosion on his destroyer.
