National Museum of Nuclear Science & History
Eugene S. Grennan served as a 2nd lieutenant in the 509th Composite Group. He was the flight engineer on the Straight Flush during the Hiroshima mission.
Ethel Schwartz arrived as a bride with her husband, Manuel Schwartz, at Los Alamos in 1944. She worked in the office until she became pregnant with her son, Joel Schwartz, who was born there after the bombs were dropped on August 6, 1945.
