National Museum of Nuclear Science & History
J. A. Douglas worked for the Roane-Anderson Company.
Marle Velde worked for the Kellex Corporation at the K-25 Plant.
Samuel Allan Kline was a student majoring in physics at the University of Chicago before going to Los Alamos to work as a physicist.
Bertie worked in the United States Engineer District Office.
Crawford worked in the United States Engineer District Office.