National Museum of Nuclear Science & History
Opaline Calhoun was a laboratory technician at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
William Uanna worked for the United States Engineer District Office.
Edward B. Irick served in the 320th Troop Carrier Squadron.
Martin G. Murray served as a corporal in the 393rd Bombardment Squadron. He was regularly assigned to the Necessary Evil as a tail gunner, but flew in the Big Stink in the Nagasaki Mission.