National Museum of Nuclear Science & History
Arthur Sievert worked for Hanley & Company.
Eleanor Caldwell was a laboratory technician in the Health Division at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Ernest C. Lawrence was a millwright at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
J. S. Culver worked for the Tennessee Eastman Corporation at the Y-12 Plant.
