National Museum of Nuclear Science & History
W. N. Sparke worked for the J.A. Jones Construction Company.
Helene Stark was a laboratory technician in the Health Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Delbert Ball was a procurement officer at the Metallurgical Laboratory in Chicago during the Manhattan Project.
William R. Compronio served as a corporal in the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned to the B-29 Some Punkins.
