National Museum of Nuclear Science & History
Eloy Roybal was a staff worker at Los Alamos during the Manhattan Project.
Sotero Romero was a staff worker at Los Alamos during the Manhattan Project.
G. E. Knutson worked for the United States Engineer District Office.
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.
