National Museum of Nuclear Science & History
John Riddle was a research assistant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Sir James Chadwick (1891-1974) was an English physicist and winner of the 1935 Nobel Prize in Physics.
Friedrich Wilhelm "Fritz" Strassmann (1902 – 1980) was a German chemist. In 1934, Strassmann joined Otto Hahn and Lise Meitner in their investigation of the bombardment of uranium with neutrons.