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.
Robert Miller was an electrical engineer in the Special Engineering Detachment at Oak Ridge, Tennessee, primarily focused on the development of measuring instrument.
Hawes worked at the 100-F Area at Hanford during the Manhattan Project.
