National Museum of Nuclear Science & History
B. H. Hagedorn worked for the Edenfield Electric Company.
H. H. Denny worked for the H. K. Ferguson Company.
Ivan Behymer came out from the Dupont 'black powder' plant in Illinois to Richland, Washington (Hanford) in March of 1943.
Stanley Skripsky served in the Army at Los Alamos during the Manhattan Project.