National Museum of Nuclear Science & History
F. H. Holbrook worked for the United States Engineer District Office.
J. H. Schlosser worked for Clinton Laboratories at the X-10 Reactor.
John Mihalkanin was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) 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.
