National Museum of Nuclear Science & History
Hayes worked in the United States Engineer District Office.
Gus Essig began working on the Manhattan Project in May, 1946 in Dayton, Ohio. Essig was selected to work in the highly classified initiator program and spent several months at Los Alamos learning how to design and construct initiators.
Angell worked at the 100 F Area at Hanford during the Manhattan Project.
