National Museum of Nuclear Science & History
P. L. Rothchild worked for the United States Engineer District Office.
Ruth Hillard was a technician at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Thomas Cowley was a Military Policeman assigned to Post Security at Los Alamos, New Mexico during the Manhattan Project.
D. M. Black worked for Clinton Laboratories at the X-10 Reactor.
E. Lander worked for the Roane-Anderson Company.
