National Museum of Nuclear Science & History
C. F. Roderick worked for the Kellex Corporation at the K-25 Plant.
John E. Christensen served in the 1027th Air Material Squadron.
George Placzek was a Czech physicist. He was born in Brno, Moravia, which was then part of Austria-Hungary but today is in the Czech Republic.
Lt. Col. Clyde Mathews was a Public Relations Officer during the Manhattan Project. He worked for Lt.