National Museum of Nuclear Science & History
Ed Helfenberger worked for the Roane-Anderson Company.
Leahy worked for Stone and Webster Engineering Corporation.
Jas Nighbert worked for Clinton Laboratories at the X-10 Reactor.
T. H. Dunigan worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Albert Tannenbaum was a research associate at the Metallurgical Laboratory in Chicago during the Manhattan Project.
