S. B. Colgate

Mary McCormick

Mary McCormick was a secretary at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

E. Shapiro

E. C. Harshbarger

E. C. Harshbarger worked for the Roane-Anderson Company.

J. M. Comly

J. M. Comly worked for the Tennessee Eastman Corporation at the Y-12 Plant.