National Museum of Nuclear Science & History
John Stiles worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Calvin B. Popwell served as a corporal 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.
Hannibal Fraga was an engineer. He joined the Manhattan Project in the fall of 1944. He worked in the inspection department at Los Alamos.
Richard Smith worked for the United States Engineer District Office.
