National Museum of Nuclear Science & History
Theodore M. Slife served as a staff sergeant in the 393rd Bombardment Squadron. He was the radio operator of the B-29 Full House, which served as a weather reconnaissance plane on the Hiroshima bombing mission, and the backup strike plane on Iwo Jima on the Nagasaki mission.
Born in 1903 in Baltimore, Mackie studied civil engineering at Union College in Schenectady, New York.
Ralph Nelson was a staff worker at Los Alamos during the Manhattan Project.
J. J. McPeake worked for the H. K. Ferguson Company.