National Museum of Nuclear Science & History
Helen R. Hughes was a laboratory technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Mary Lanahan was a stenographer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
R. J. Guthrie worked for the Watson-Flagg Engineering Company.
J. P. Moore worked as a chemist for US Vanadium Company and then as Chief Chemist at Grand Junction, CO, where he analyzed uranium.
