National Museum of Nuclear Science & History
Troy Richardson worked for the Roane-Anderson Company.
George Maronde was a security guard at the University of Chicago Metallurgical Lab. He stood guard outside Stagg Field when Chicago Pile-1 went critical on December 2, 1942.
Robert Sturgess was a staff worker at Los Alamos during the Manhattan Project.
Gabriel worked at the 100-D Area at Hanford during the Manhattan Project.