National Museum of Nuclear Science & History
Egon Bretscher (1901-1973) was a chemist and nuclear physicist and was involved in the British atomic bomb effort.
Silver worked for Stone and Webster Engineering Corporation.
Niels Bohr (1885-1962) was a Danish physicist and winner of the 1922 Nobel Prize in Physics. Bohr began his work on the Manhattan Project after fleeing to Sweden from Denmark because of German occupation in 1943.