National Museum of Nuclear Science & History
J. P. Smith worked for the J.A. Jones Construction Company.
Roswell Pooler served in the Army at Los Alamos during the Manhattan Project.
Hall worked in the United States Engineer District Office.
Minnesota native Roger Hultgren worked for the DuPont Company as a chemist during the early 1940s, initally assigned to the Jolliet, Illinois munitions plans.
