National Museum of Nuclear Science & History
C. H. Simpson worked for Clinton Laboratories at the X-10 Reactor.
James A. Parsons was an American chemical engineer. Parsons was born in Hand County, South Dakota. Upon graduation from South Dakota School of Mines and Technology, B.
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.
