National Museum of Nuclear Science & History
Grace Hardin worked for the J.A. Jones Construction Company.
Howard Lange was the Curator in the Chemistry Division at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Fiedler worked in the United States Engineer District Office.
Robert Miller was a Major in the US Army Corps of Engineers and Chief of the Priorities & Expediting Section at Oak Ridge, Tennessee.