National Museum of Nuclear Science & History
Frank Swoboda was a staff worker at Los Alamos during the Manhattan Project.
James J. Johnson served in the 603rd Air Engineering Squadron.
Friedrich worked in the United States Engineer District Office.
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.
