C. F. Chambers

J. J. Morrissey

J. J. Morrissey worked for the United States Engineer District Office.

O. W. Manz, Jr.

O. W. Manz, Jr. worked for the Union Carbide & Carbon Corporation.

Everett C. Parent

Frank Karcher

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