National Museum of Nuclear Science & History
Barnes worked in the United States Engineer District Office.
John C. Hansen served as a Master Sergeant in the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned to the B-29 Laggin’ Dragon.
V. A. Snow worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Dennis Dwyer was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.