National Museum of Nuclear Science & History
Harold Smith worked for the Kellex Corporation at the K-25 Plant.
J. J. De Groot worked for the J.A. Jones Construction Company.
Chester S. Krajczynski served in the 603rd Air Engineering Squadron.
Clare Whitehead joined the Women’s Army Auxiliary Corps (WAAC) in 1943. After training in the Manhattan Engineer District and working in Oak Ridge, she transferred to Hanford, where she was a secretary for military intelligence.