National Museum of Nuclear Science & History
Ray Mettelka worked for the Tennessee Eastman Corporation at the Y-12 Plant.
William Sehenk worked on procurement and property at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Burr H. Ritter was a chemical engineer at the Hooker Chemical Company in Niagara Falls, New York during the Manhattan Project.
R. A. Mathews worked for the United States Engineer District Office.