National Museum of Nuclear Science & History
Louella Simmons was a procurement and property worker at the Metallurgical Laboratory in Chicago during the Manhattan Project.
L. F. Preston worked for the United States Engineer District Office.
Claude E. McLenon served as a technical sergeant in the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned to the B-29 Big Stink, and he and his crew were later reassigned to Luke the Spook.
Ed Helfenberger worked for the Roane-Anderson Company.