National Museum of Nuclear Science & History
Barr worked for Stone and Webster Engineering Corporation.
Phyllis Smith worked for the H. K. Ferguson Company.
Edward P. Hayes was a laboratory assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Stanford worked at the 300 Area at Hanford during the Manhattan Project.
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.
