bn:16569309n
Noun Named Entity
Categories: American male short story writers, 1988 deaths, 1907 births, Writers from Alaska, University of Wisconsin–Madison alumni
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John Drury Clark  John D. Clark  Doc Clark  Ignition  Ignition!
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John Drury Clark, Ph.D. was an American rocket fuel developer, chemist, and science fiction writer. Wikipedia
English:
rocket scientist
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EN
John Drury Clark, Ph.D. was an American rocket fuel developer, chemist, and science fiction writer. Wikipedia
American author, chemist and rocket scientist Wikipedia Disambiguation
American chemist and writer Wikidata
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