National Museum of Nuclear Science & History
Grovsnor worked in the United States Engineer District Office.
Winfield C. Kinkade served as a corporal in the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned to the B-29 Enola Gay.
Butscher worked for Stone and Webster Engineering Corporation.
William Kann was a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
