National Museum of Nuclear Science & History
Gebhardt worked for Stone and Webster Engineering Corporation.
A. O. Flindt worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Mark Fred was a research assistant in the chemistry division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Barksdale worked for Stone and Webster Engineering Corporation.
Flannigan worked in the United States Engineer District Office.