National Museum of Nuclear Science & History
N. F. Smyth worked for the Kellex Corporation at the K-25 Plant.
Jas Howard worked for the United States Engineer District Office.
Rene Prestwood was an American nuclear chemist. Prestwood was recruited for the Manhattan Project as a young chemist from the University of California-Berkeley.
L. F. Hemphill worked for the Tennessee Eastman Corporation at the Y-12 Plant.