National Museum of Nuclear Science & History
W. S. Porter 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.
Silver worked for Stone and Webster Engineering Corporation.
William R. Purnell (1886-1955) was a Rear Admiral in the US Navy and served as the Navy liaison on the Military Policy Committee for the Manhattan Project.
Gaffney worked in the United States Engineer District Office.