National Museum of Nuclear Science & History
Harold B. Nilling was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
C. D. Emmons worked at the 100-F Area at Hanford during the Manhattan Project.
Françoise (Aron) Ulam was the wife of mathematician Stanislaw Ulam, who worked for the Manhattan Project in Los Alamos, NM during World War II.
John P. McBride was a research assistant in the Chemistry Division at the Chicago Met Lab. He was later assigned to Oak Ridge, where he worked on plutonium purification and on isolating uranium-233 isotopes from thorium.