National Museum of Nuclear Science & History
B. Roswell Russell worked at the Metallurgical Laboratory in Chicago during the Manhattan Project. He was one of seventy signers of the Szilard Petition.
George Allen served in the US Armed Forces and flew B-29s in the air force during World War Two. He did not see action, but was in Alamogordo, New Mexico, when the Trinity Test was conducted and witnessed the explosion from afar.
R. W. Llewellyn worked for the United States Engineer District Office.
