National Museum of Nuclear Science & History
Jacob Beser served as a 1st lieutenant in the 393rd Bombardment Squadron’s Radar Section. He was the radar specialist aboard the Enola Gay bombing mission to Hiroshima and on Bockscar during the Nagasaki mission.
Jack L. Callan was a laborer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Gagen worked in the United States Engineer District Office.
