National Museum of Nuclear Science & History
Ruby Palen worked for the United States Engineer District Office.
H. J. Mack worked for the Edenfield Electric Company.
Dick Kosh was an American physicist. He worked at the Los Alamos site during the war, arriving from the University of Wisconsin, Madison, and then stayed afterwards.
William “Bill” J. Knox was a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
