National Museum of Nuclear Science & History
Opaline Calhoun was a laboratory technician at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Fred Whitehead was a staff member at Los Alamos during the Manhattan Project.
Stanislaw Ulam (1909-1984) was a Polish-American mathematician. Ulam was born in 1909 in Lvov, Austria-Hungary (present-day Ukraine).
