National Museum of Nuclear Science & History
R. W. Addington worked for the J.A. Jones Construction Company.
Lawrence J. Sweitzer served in the 1027th Air Material Squadron.
R. S. Poteat worked for the United States Engineer District Office.
Celia Szapka Klemski was working as a secretary for the State Department in Washington, DC when she was transferred to Manhattan to work on the Manhattan Project in 1942.
Homer W. Ibser was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.