National Museum of Nuclear Science & History
S. J. Helfman worked for the J.A. Jones Construction Company.
Arthur Julius Olofson joined the Manhattan Project at Los Alamos in June 1944. Olofson developed specialized tools for components of the atomic bomb under Dr.
Percival C. “Dobie” Keith was Vice President for Research and Engineering for the M.W. Kellogg Company.
Carl Adolphson was a staff worker at Los Alamos during the Manhattan Project.
