National Museum of Nuclear Science & History
Bill Hartnett worked in plutonium metallurgy for the Manhattan Project at the Hanford Engineer Works from January 1943 to December 1946.
Harold M. Spurling served in the 320th Troop Carrier Squadron.
Breyer worked in the United States Engineer District Office.
James F. Delehanty served in the 1395th Military Police Company, Aviation.