National Museum of Nuclear Science & History
Sherman Winters was a janitor at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.
G. L. Ryan worked for the United States Engineer District Office.
A. G. Underwood worked for the J.A. Jones Construction Company.
Robert J. Moon (1911-1989) was a physicist at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project and a signer of the Szilard petition.