James H. Hanson

Jack L. Callan

Jack L. Callan was a laborer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Walter C. Youngs, Jr.

Walter Youngs, Jr. worked for the United States Engineer District Office.

G. E. Graves

Clair W. Burgener

Clair W. Burgener served in the 320th Troop Carrier Squadron.