William M. Clements

Lawrence O’Rourke

Lawrence S. O’Rourke began working on the Manhattan Project at Columbia University after he was called up from the Army Reserves in 1943.

William P. Jesse

William P. Jesse was a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Henry J. Ward

Henry Ward worked for the United States Engineer District Office.

Jack Knowlton