National Museum of Nuclear Science & History
Otto C. Block, Jr. served in the 393rd Bombardment Squadron.
Johnson worked at the 100-B Area at Hanford during the Manhattan Project.
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.
Lewis worked in the 200 W Area at Hanford during the Manhattan Project.