National Museum of Nuclear Science & History
Saul Efron worked for the Roane-Anderson Company.
Dickson worked for Stone and Webster Engineering Corporation.
Langworthy worked in the 100 D Area at Hanford 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.