Books by Gray Johnson Poole:
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Poole, Gray Johnson: Scientists Who Changed the World (New York: Dodd, Mead and Co., c1960), also by Lynn Poole (page images at HathiTrust)
Additional books by Gray Johnson Poole in the extended shelves:
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Poole, Gray Johnson: Carbon-14, and other science methods that date the past (Whittlesey House, 1961), also by Lynn Poole (page images at HathiTrust)
Find more by Gray Johnson Poole at your library, or elsewhere.