National Museum of Nuclear Science & History
Harold Riley was an American chemical engineer. After graduating from North Carolina State College, Riley began his career working as a rayon technician at the DuPont Company.
Prisda Rosen was a laboratory technician in the Health Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Howard T. Parr served in the 603rd Air Engineering Squadron.
John Miles was a physicist for the DuPont Company. During the Manhattan Project, he worked at the University of Chicago Met Lab and at Hanford.
