J. W. O. Ash

G. W. Flack

G. W. Flack worked for the Union Carbide & Carbon Corporation.

G. A. Lunceford

Frank Karcher

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

W. R. Kreitzberger

Kreitzberger worked in the 200 East Area at Hanford during the Manhattan Project.