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A. R. Crook
(1864-1930)
American scientist and academic
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Alja Robinson Crook (June 17, 1864 – May 31, 1930) was an American scientist and academic from Ohio. Crook attended Ohio Wesleyan University and received a Ph.D. in Europe in 1892. He was a professor of mineralogy and economic geology at Northwestern University from 1893 to 1906, when he was named Illinois State Geologist. As state geologist, he greatly expanded the state museum.

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Born
17 June 1864
Circleville, Ohio
Died
31 May 1930 (aged 65)
Springfield, Illinois
Zodiac Gemini
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