National Museum of Nuclear Science & History
Manuel Romero was a staff worker at Los Alamos during the Manhattan Project.
Raphael Semmes worked for Clinton Laboratories at the X-10 Reactor.
Chowning worked at the 200 East Area at Hanford during the Manhattan Project.
Attended Creighton University.
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.
