National Museum of Nuclear Science & History
M. R. Pierce worked for the Kellex Corporation at the K-25 Plant.
John Rowell was a staff worker at Los Alamos during the Manhattan Project.
Bruner worked in the United States Engineer District Office.
Harry Petcher's flat feet meant he couldn't be drafted, but still had an obligation to work for the war effort.
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.