National Museum of Nuclear Science & History
H. R. Grady worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Fred Vogel was an American chemical engineer who worked at Los Alamos during the Manhattan Project. Vogel studied at Lehigh University in Pennsylvania and later worked as Chief Engineer for the Cornell Machine Company and for the Centaur Machine Company.
Davis worked in the United States Engineer District Office.
W. E. S. Trenchard worked for the J.A. Jones Construction Company.
