E. E. Coulter

Otis L. Wright

Otis Wright worked for the United States Engineer District Office.

Jay Hitchcock

Jay Hitchcock worked in the Shop at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Gerald E. Huber

Joseph Caldwell

Joseph Caldwell was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.