National Museum of Nuclear Science & History
E. L. Robinson worked for the H. K. Ferguson Company.
Ernest C. Lawrence was a millwright at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Daniel N. Koshland was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
E. J. Vakakes worked for the United States Engineer District Office.