National Museum of Nuclear Science & History
Paul Metro was a member of the 393rd Bomb Squadron in the 509th Composite Group stationed in Wendover, Utah and on Tinian Island in the Pacific.
John Arnold joined the Manhattan Project in 1943 when the MED tasked his employer, the Kellogg Corporation, with developing a special barrier for the gaseous diffusion plant in Oak Ridge.
Emil J. Konopinski (1911-1990) was an American theoretical physicist. After receiving his Ph.D. from the University of Michigan, Konopinski worked as a National Research Council Fellow with Hans Bethe at Cornell University.