National Museum of Nuclear Science & History
J. D. Mitchell worked for the Roane-Anderson Company.
H. F. Adams worked for the J.A. Jones Construction Company.
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.
Fred Sexton worked for the Tennessee Eastman Corporation at the Y-12 Plant.