National Museum of Nuclear Science & History
John Horan worked for the United States Engineer District Office.
Hallie Perry was an electrician at Oak Ridge, Tennessee for the Watson-Flagg Engineering Company from 1943 to 1945.
D. J. McKinzie worked for the Kellex Corporation at the K-25 Plant.
Stanley Robertson was a mechanical engineer in the Special Engineer Detachment serving at Oak Ridge, Tennessee.
