National Museum of Nuclear Science & History
Alexander Blair was a consultant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
John H. Williams (1908-1966) was a Canadian-American physicist. Williams transferred to Los Alamos in early 1943 and was among the first group of scientists to arrive on the Hill.
Marietta C. Moore was a technician in the Health Division at the University of Chicago Met Lab. She signed the Szilard petition.
Attended Purdue University.