National Museum of Nuclear Science & History
Catherine Newton worked for the United States Engineer District Office.
Leo P. Hassen was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Samuel Proctor Massie Jr. (1919-2005) was an African American chemist who worked on the Manhattan Project.
J. C. Freer worked for the Roane-Anderson Company.
