National Museum of Nuclear Science & History
Willis Throckmorton was a staff worker at Los Alamos during the Manhattan Project.
R. A. Porter worked for the United States Engineer District Office.
George Cowan joined the Manhattan Project in 1942 at the Met Lab as a chemist for Enrico Fermi’s group, and also worked for Columbia University.
Charles Blanchard worked for the Tennessee Eastman Corporation at the Y-12 Plant.