National Museum of Nuclear Science & History
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.
William Cavin was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Gray worked at the 300 Area at Hanford during the Manhattan Project.
Clarence Yohn worked for the Tennessee Eastman Corporation at the Y-12 Plant.
