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National Museum of Nuclear Science & History

Before the war Oswald Greager was a high-ranking DuPont chemist. He took leave from DuPont in 1942 to join the Army's Chemical Warfare Service. Later, he was trans­ferred to the Manhattan Project. At Hanford, he was the Army's representative at the plutonium separation areas. He returned to Hanford after the war to work for General Electric as a technical manager in the separation areas. He stayed in Richland after retirement.

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