William R. Swank

Olga M. Klicek

Olga M. Klicek was a laboratory technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Emma Tolmach

Emma Tolmach was a technician in the Chemistry Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.

Walter H. Cottrell

Clifford E. Nordeen