National Museum of Nuclear Science & History
Elvin Krieble worked for the United States Engineer District Office.
Haydn Jones was a research assistant in the Physics Division at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Harry Reason was a janitor at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Andrew Polich was a staff worker at Los Alamos during the Manhattan Project.
