National Museum of Nuclear Science & History
Pef worked for Stone and Webster Engineering Corporation.
Paul Olivas was a staff worker at Los Alamos during the Manhattan Project.
E. F. Jameson worked for the Roane-Anderson Company.
Robert R. Williamson was a laboratory assistant and computer at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.
Prisda Rosen was a laboratory technician in the Health Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.