National Museum of Nuclear Science & History
MacDonald was a member of the Instrument Section at the University of Chicago’s Metallurgical Laboratory.
B. Roswell Russell worked in the Health Group at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Ernest M. Bahor was a chemist. He graduated from the University of Detroit. He was a member of the Special Engineer Detachment and worked at the K-25 Plant in Oak Ridge during the Manhattan Project.