J. L. Ledgerwood

Wayne Simonds

Wayne Simonds worked for the Tennessee Eastman Corporation at the Y-12 Plant.

Patrick McKinney

Margaret M. Emmerson

Margaret M. Emmerson was a technician 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.