Howard G. Manuel

Herman Snyder

Herman Snyder worked on the Manhattan Project at Oak Ridge as a soldier in the Special Engineer Detachment.

Lucille McQuillan

Paul J. Esterline

Paul J. Esterline was an engineer. He attended Ohio State University for two years, and then attended the Chicago Technical Institute in the late 1920s, learned engineering drafting there.

Helen E. Krinek

Helen E. Krinek was a research assistant in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.