National Museum of Nuclear Science & History
A. H. Dahl worked for the Tennessee Eastman Corporation at the Y-12 Plant.
J. H. Neumann worked for the J.A. Jones Construction Company.
Howard Lange was the Curator in the Chemistry Division at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
James C. Hart was a DuPont chemist and member of the health physics group during the Manhattan Project.