National Museum of Nuclear Science & History
A. O. Groth worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Howard Parsons was an American physicist. Parsons was born in Chicago in 1920. He receieved a B.S. from the University of Chicago, and shortly afterwards was hired to work on the Manhattan Project as a research assistant at the Chicago Met Lab.
Ayres worked in the United States Engineer District Office.
