National Museum of Nuclear Science & History
A. B. Cardwell worked for the Tennessee Eastman Corporation at the Y-12 Plant.
T. M. Ward worked for the J.A. Jones Construction Company.
Carl Helrich (1895-1971) was a civil engineer for the J.A. Construction Company from 1943 to 1945 and helped construct the Oak Ridge town site and plant area.
D. M. Smith worked for Clinton Laboratories at the X-10 Reactor.