National Museum of Nuclear Science & History
R. Warden worked for the Edenfield Electric Company.
Cheney worked in the United States Engineer District Office.
Robert Keen enlisted in the military on December 28, 1944 and began his training for the U.S. Army Corps of Engineers in January of 1945.
William Cavin was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.