National Museum of Nuclear Science & History
E. H. McDaniel worked for the Edenfield Electric Company.
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.
L. E. Combs worked for the Roane-Anderson Company.
Gamble worked in the United States Engineer District Office.