National Museum of Nuclear Science & History
Hugh T. Richards was an American physicist. He worked on neutron measurements for the atomic bombs at Los Alamos during the Manhattan Project.
Chester A. Hammond served as a corporal in the 393rd Bombardment Squadron. He was a member of the ground crew on the B-29 Full House.
Dixon worked for Stone and Webster Engineering Corporation.
John H. Martens was a research associate and chemist at the University of Chicago Met Lab and a member of the Special Engineer Detachment at Oak Ridge.