National Museum of Nuclear Science & History
D. C. Shugart worked for the United States Engineer District Office.
William Rubinson was a chemist at the Metallurgical Laboratory in Chicago during the Manhattan Project.
William R. Purnell (1886-1955) was a Rear Admiral in the US Navy and served as the Navy liaison on the Military Policy Committee for the Manhattan Project.
Daniel Pfaff was a staff worker at Los Alamos during the Manhattan Project.