National Museum of Nuclear Science & History
Norris W. Embrey was a laboratory assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
W. C. Keettel worked for the United States Engineer District Office.
O. W. Childs worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Leon Leventhal was a nuclear chemist and radiation expert who worked at Oak Ridge, the University of Chicago’s Met Lab, and Los Alamos Laboratory during the Manhattan Project.