National Museum of Nuclear Science & History
C. E. Twigg worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Before WWII, Miles Leverett was a young Ph.D chemical engineer working for Humble Oil & Refining Co.
Rene Prestwood was an American nuclear chemist. Prestwood was recruited for the Manhattan Project as a young chemist from the University of California-Berkeley.
John W. Gofman was an American scientist who helped develop plutonium separation techniques during the Manhattan Project.