E. J. Sekeres

John Mihalkanin

John Mihalkanin was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Delbert Ball

Delbert Ball was a procurement officer at the Metallurgical Laboratory in Chicago during the Manhattan Project.

Dick Duffy

J. W. Barnett

J. W. Barnett worked for the Tennessee Eastman Corporation at the Y-12 Plant.