National Museum of Nuclear Science & History
H. C. Elliott worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Sadelle T. Greenblatt was a research assistant in the Instruments Division of the University of Chicago’s Metallurgical Laboratory during the Manhattan Project.
J. D. Gibson worked for the Roane-Anderson Company.
Ken Pumphrey joined the Manhattan Project at Los Alamos in 1946, where he worked as a security guard until 1948.
Gibson worked in the United States Engineer District Office.