National Museum of Nuclear Science & History
Harris Small was stationed in Oak Ridge, Tennessee, in the Special Engineer Department (SED). He served as a supervising civilian operator of shifts (the Calutron girls) at the Y-12 Electromagnetic Separation Plant.
J. J. Donovan worked for the H. K. Ferguson Company.
J. H. Marsh worked for the Kellex Corporation at the K-25 Plant.
E. C. Armstrong worked for the Tennessee Eastman Corporation at the Y-12 Plant.