National Museum of Nuclear Science & History
Francis R. Shonka (1906-1970) was an American physicist and inventor. Shonka taught physics for a number of years in China and at St.
E. H. Marsden worked for the United States Engineer District Office.
Louis Slotin (1910-1946) was a Canadian physicist. Shortly after World War II, he died from radiation sickness contracted during a dangerous experiment conducted at Los Alamos.