
American astronomer (1882-1967)
John Charles Duncan was born on February 8, 1882 in Knightstown and died on September 10, 1967 in Chula Vista, aged 85. Recorded occupations: astronomer and writer. Country of citizenship: United States. Educated at Harvard University. Member of American Academy of Arts and Sciences.
This image of John Charles Duncan's signature comes from Wikimedia Commons (Wikidata P109 signature file). Its licence is recorded as CC BY-SA 4.0, with the file credited to Cmholm. It is linked to the person through Wikidata property P109 (signature), which ties a documented individual to a specific archived file. We show the file as published and do not redraw or retouch it. Deceased 1967: low publicity-rights risk; CC BY-SA: derivative collage may need share-alike + attribution.
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