National Museum of Nuclear Science & History
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.
M. E. Brennan worked for the Watson-Flagg Engineering Company.
Gordon Smith was a chemical engineer in the 9812th Technical Service Unit of the U. S. Army Corps of Engineers Special Engineer Detacment at the Clinton Engineer Works in Oak Ridge.
Robert Lyste Thornton was a Canadian-American physicist who oversaw the constuction and operation of the Beta calutron electromagnetic separation Plant in Oak Ridge, Tennessee during the Manhattan Project.
