National Museum of Nuclear Science & History
Ken Pumphrey joined the Manhattan Project at Los Alamos in 1946, where he worked as a security guard until 1948.
Harry Daghlian (1921-1945) was an American physicist. He died in 1945 from radiation poisoning after a criticality accident at Los Alamos.
Rubby Sherr (1913-2013) was an American physicist. Shortly after finishing his Ph.D. at Princeton University, Sherr was performing groundbreaking radar research at the MIT Radiation Lab.