National Museum of Nuclear Science & History
Mary Elizabeth Barnes was a radiochemist working in the Y-12 Plant in Oak Ridge, Tennessee from 1946 to 1952.
Douglas Rouse worked for the United States Engineer District Office.
Robert van Gemert worked in procurement and supply for Los Alamos during the Manhattan Project. He was also involved in organizing preparations for the Trinity Test.
Robert C. Durrum served in the 1st Ordnance Squadron.