National Museum of Nuclear Science & History
Dorothy Isgett worked for the Tennessee Eastman Corporation at the Y-12 Plant.
John Klein was a member of the Special Engineering Detachment. He worked at the Metallurgical Lab at the University of Chicago and at Los Alamos.
Duren Howard Shields was a staff worker at Los Alamos during the Manhattan Project. During his time there, he worked on building the experimental casing for the bomb.
Butt worked in the United States Engineer District Office.