National Museum of Nuclear Science & History
D. J. Kridel worked for the United States Engineer District Office.
John L. Willoughby served as a sergeant in the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned to the B-29 Bockscar.
George C. Hollowwa was a member of the Army Air Corps and a weapons expert. During and after World War II, he was involved in the assembly and testing of atomic weapons.
Hardy worked at the 200 West Area at Hanford during the Manhattan Project.