National Museum of Nuclear Science & History
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.
Johnson worked at the 100-F Area at Hanford during the Manhattan Project.
N. W. Lowery worked for the Roane-Anderson Company.
