National Museum of Nuclear Science & History
Stanley Anhalt was a laboratory assistant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Thomas Waling was a staff worker at Los Alamos during the Manhattan Project.
William Spindel was a member of the Special Engineer Detachments at Oak Ridge and Los Alamos. Spindel worked in a group that helped make coatings for the implosion bomb.
Benjamin Nelson served in the Army at Los Alamos during the Manhattan Project.