National Museum of Nuclear Science & History
Jack Smith was a staff worker at Los Alamos during the Manhattan Project.
E. V. Lofstrum worked for the J.A. Jones Construction Company.
Arnold graduated from Northwestern University in 1941 with a B.S. degree in Biology and a minor in Chemistry.
Andrew H. MacMahon was the Chief Property Officer of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
