National Museum of Nuclear Science & History
D. R. Johnson worked for the Roane-Anderson Company.
William S. Biggers worked as a chemical engineer during the Manhattan Project. Biggers worked at the the Houdaille-Hershey Plant in Decatur, Illinois from April 1944 to December 1946.
Breadhead worked at Los Alamos during the Manhattan Project.
Orin R. Barrett served in the 393rd Bombardment Squadron.