National Museum of Nuclear Science & History
A. S. Preston worked for the Tennessee Eastman Corporation at the Y-12 Plant.
J. C. Watkins worked for the United States Engineer District Office.
John P. Flannery worked for H.K. Ferguson Co. and Morrison Knudson. Co. on construction at Oak Ridge, TN during the Manhattan Project.
Tyson Hamel worked for the Roane-Anderson Company.