National Museum of Nuclear Science & History
W. B. Savage worked for the H. K. Ferguson Company.
E. R. Smallwood served in the 509th Headquarters.
Joseph Caldwell was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Eleanor Caldwell was a laboratory technician in the Health Division at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.