National Museum of Nuclear Science & History
DeRenzis worked in the United States Engineer District.
Harold Hasenfus was part of the Special Engineer Detachment during the Manhattan Project and worked at the University of Chicago's Metalurgical Laboratory and at the gaseous diffusion plant in Oak Ridge.
D. D. Clayton worked for the Roane-Anderson Company.
Winfield Sylvester was a staff worker at Los Alamos during the Manhattan Project.
