National Museum of Nuclear Science & History
Joseph H. Laird graduated from Harvard University in 1942 with a bachelor's degree in chemistry. During the war, Laird became a member of the Special Engineer Detachment, where he served as an industrial inspector at Tennessee Eastman Corporation in Oak Ridge.
Jim Johnson was an ordnanceman at Los Alamos from 1944 to 1945. He was born on January 8, 1926, and started work at the Naval Ordnance Test Station at China Lake, Califiornia in 1944.