National Museum of Nuclear Science & History
MacDonald was a member of the Instrument Section at the University of Chicago’s Metallurgical Laboratory.
Ralph Alexander Gardner-Chavis (1922-) is a chemist and pioneer of hard plastics who worked at the University of Chicago’s Met Lab during the Manhattan Project.
Joseph Sedor served in the 390th Air Service Group.
P. G. Elliott worked at the 200 West Area at Hanford during the Manhattan Project.