Robert C. Watson

T. J. O’Donnell

T. J. O’Donnell was the Shop Chief at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Rush Tankersley

Herbert Silverstone

Herbert Silverstone was a research assistant at the Metallurgical Laboratory in Chicago during the Manhattan Project.

Walter D. Main

Walter Main worked for the United States Engineer District Office.