National Museum of Nuclear Science & History
W. J. Carroll worked for the Roane-Anderson Company.
William T. Kelley was drafted in 1942 into the Army and was assigned to the Corps of Engineers’ Manhattan District as part of the counterintelligence element of the project.
Walter Main worked for the United States Engineer District Office.
Leonard Krouldis was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Page worked in the 100 D Area during the Manhattan Project.