National Museum of Nuclear Science & History
Haskell Sheinberg arrived at Los Alamos in late 1944 as part of the Special Engineer Detachment. Sheinberg’s first assignment was to purify plutonium under the direction of Arthur Wahl, one of the co-discoverers of plutonium.
Kenneth Stewart Cole was a Principal Biophysicist at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Breyer worked in the United States Engineer District Office.
W. H. Seaman worked for the United States Engineer District Office.