National Museum of Nuclear Science & History
MacDonald was a member of the Instrument Section at the University of Chicago’s Metallurgical Laboratory.
Thomas Waling was a staff worker at Los Alamos during the Manhattan Project.
Arthur Compton (1892-1962) was an American physicist and winner of the Nobel Prize in Physics. A top administrator and advisor during the Manhattan Project, Compton played a key role in the making of the atomic bomb.
Roy Stipp worked for the Tennessee Eastman Corporation at the Y-12 Plant.