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National Museum of Nuclear Science & History

Warren Sheehan joined Mound Laboratory in April 1956. He spent the first half of his career in health physics, or radiation safety, where he developed a new methodology for determining the amount of plutonium in urine. Sheehan replaced long-time Mound employee Mary Lou Curtis when she retired, and joined the Nuclear Operations Group.

Warren Sheehan's Timeline
1956 Apr Began working at Mound Laboratory.
1972 Joined Nuclear Operations Group.
1989 Retired.

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