National Museum of Nuclear Science & History
Leon Sayvetz was a research assistant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Married to John Weil, a mechanical engineer in the SED.
Weckler worked at the 100-D Area at Hanford during the Manhattan Project
Sir James Chadwick (1891-1974) was an English physicist and winner of the 1935 Nobel Prize in Physics.