National Museum of Nuclear Science & History
R. H. Duncan worked for the Comstock-Bryant Electric Company.
A. H. Barrett worked for the Kellex Corporation at the K-25 Plant.
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.