National Museum of Nuclear Science & History
George I. Ray worked for the G.G. Ray Company.
V. W. Zeinfeld served in the 509th Headquarters.
Philip S. Anderson was a major in the US Army and worked at Oak Ridge, TN during the Manhattan Project.
Opaline Calhoun was a laboratory technician at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.