National Museum of Nuclear Science & History
H. G. Singleton worked for the Roane-Anderson Company.
Nelson Tubb worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Brewer worked in the United States Engineer District Office.
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.
