National Museum of Nuclear Science & History
Fred Sexton worked for the Tennessee Eastman Corporation at the Y-12 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.
R. J. Lewinson served in the 509th Headquarters and Base Services Squadron.
Jack Hefner joined the Manhattan Project at Oak Ridge in 1943. Hefner was a reactor engineer and helped supervise the construction of the X-10 Graphite Reactor.
