National Museum of Nuclear Science & History
J. T. Murphy worked for the United States Engineer District Office.
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.
Charles W. Hagen was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.