National Museum of Nuclear Science & History
Juan Romero was a staff worker at Los Alamos during the Manhattan Project.
Ray Sheehan worked for the United States Engineer District Office.
Francis S. Kotzian served in the 1st Ordnance Squadron.
E. G. Olsen worked for the United States Engineer District Office.
Harold B. Nilling was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
