National Museum of Nuclear Science & History
R. O. Mitchell worked for the Roane-Anderson Company.
Murray Peshkin (1925-2017) was an American physicist. Peshkin was recruited by the Army to work at Los Alamos during World War II.
Piper worked for Stone and Webster Engineering Corporation.
Eleanor Lewis was a laboratory technician at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.