National Museum of Nuclear Science & History
Ruska worked for Stone and Webster Engineering Corporation.
J. F. Carpenter worked for the Tennessee Eastman Corporation at the Y-12 Plant.
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.
Long worked for Stone and Webster Engineering Corporation.