National Museum of Nuclear Science & History
Eleanor Ewing Ehrlich (1918-2011) was an American mathematician. During the Manhattan Project, Ewing worked at Los Alamos and helped run the IBM calculating team.
Julian Schwinger (1918-1994) was an American theoretical physicist and the 1965 Nobel Prize winner. During the summer of 1943, Schwinger briefly worked on the development of the atomic bomb at the University of Chicago’s Metallurgical Laboratory.