Walter J. Skora

Francis Bernard Donlan

Francis Bernard “Bernie” Donlan was an American photographer and a clerk at the Chicago Met Lab during the Manhattan Project.

Clarence W. Piltingrud

J. J. Cunningham

Cunningham worked in the United States Engineer District Office.

Leo A. Ohlinger

Leo A. Ohlinger was a senior engineer at the University of Chicago Met Lab. Ohlinger was also Section Chief of P-IX, Engineering Physics.