National Museum of Nuclear Science & History
Hans von Halban (1908-1964) was an Austrian physicist. Being of Jewish descent, Halban left Austria in 1935 to avoid persecution by the Nazi regime.
Herbert G. “Mac” MacPherson (1911-1993) was an American nuclear engineer. MacPherson’s expertise on graphite made him a valuable consultant for the Manhattan Project.
Clark Prather worked for the Kellex Corporation at the K-25 Plant.
Henry L. Smith served in the 393rd Bombardment Squadron.
