National Museum of Nuclear Science & History
Grace Wallace worked for the United States Engineer District Office.
Joseph S. Dispensa served in the 393rd Bombardment Squadron. After the war, Dispensa was assigned to the Japan Atomic Bomb Damage Survey teams.
Harvey Matthioson was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Harris Mayer, born in 1921, is an American physicist. During World War II, Mayer joined the Manhattan Project at Columbia University.