National Museum of Nuclear Science & History
J. E. Sampson worked for the United States Engineer District Office.
Eleanor Caldwell was a laboratory technician in the Health Division at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
A. G. Dibrell worked for the J.A. Jones Construction Company.
Hugh T. Richards was an American physicist. He worked on neutron measurements for the atomic bombs at Los Alamos during the Manhattan Project.