National Museum of Nuclear Science & History
Virginia Cowan worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Leon D. Smith joined the Manhattan Project in 1944 and was assigned to the 509th Composite Group at Wendover Airfield in Utah.
Wilford A. Orr served in the 320th Troop Carrier Squadron.
William E. Caldes studied chemical engineering at Princeton University. In 1943, he was recruited to join the Manhattan Project, and became the 19th project member at Los Alamos.
