National Museum of Nuclear Science & History
J. N. Holt worked for the United States Engineer District Office.
William P. Sheehan served in the 509th Headquarters.
J. T. Murphy worked for the United States Engineer District Office.
Robert C. Hirt was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Alan Bell worked for the Tennessee Eastman Corporation at the Y-12 Plant.
