National Museum of Nuclear Science & History
William Gray worked for the Roane-Anderson Company.
Ernest William Titterton was a British nuclear physicist who worked on the Manhattan Project as part of the British Mission to Los Alamos.
Clifford E. Willison served in the 1027th Air Material Squadron.
Marjorie B. Housewright was a stenographer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.