National Museum of Nuclear Science & History
MacDonald was a member of the Instrument Section at the University of Chicago’s Metallurgical Laboratory.
Anna B. Adolphson was a laboratory technician in the Health Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Melvin A. Jones served in the 320th Troop Carrier Squadron.
Louis Oblich served in the Army at Los Alamos during the Manhattan Project.