National Museum of Nuclear Science & History
Percival C. “Dobie” Keith was Vice President for Research and Engineering for the M.W. Kellogg Company.
F. C. King worked for the United States Engineer District Office.
Robert L. McNamee served as a sergeant in the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned to the B-29 Bockscar.
Fredrick “Fred” D. Johnson was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.