John D. Martin

A.J. Hayes

Hayes worked in the United States Engineer District Office.

Valda B. Lemke

Valda B. Lemke was a laboratory assistant at the Metallurgical Laboratory in Chicago during the Manhattan Project.

Norma J. Hinton

Norma J. Hinton was a laboratory technician at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

T.Y. Quarles