National Museum of Nuclear Science & History
O'Brien worked for Stone and Webster Engineering Corporation.
Joseph Rotblat (1908-2005) was a British-naturalized Polish physicist and 1995 Nobel Peace Prize winner.
Lewis worked for Stone and Webster Engineering Corporation.
Louis Bernard Werner was an American chemist. Werner received a B.S. from the University of Idaho, and was working on his doctorate at the Univeristy of Chicago at Berkeley when he was recruited to work on the Manhattan Project at the Chicago Met Lab.