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John Dennis Ryan
American industrialist and copper mining magnate
John Denis Ryan (October 10, 1864 – February 11, 1933) was an American industrialist and copper mining magnate. He served as President of the Anaconda Copper Mining Company and was a founder of the Montana Power Company.2
From Wikipedia’s article on John Dennis Ryan (this version), CC BY-SA 4.0.
Born Oct 10, 1864, died Feb 11, 1933.1
Sources
The numbers on this page point here. Each one links to the record it came from.
- 1WikidataJohn Dennis Ryan on Wikidata
- 2WikipediaJohn Dennis Ryan on Wikipedia
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- 7Wikidataplace of death, as reported
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- 9WikidataMontana Power Company, Founder
- 10Wikimedia CommonsJohn Dennis Ryan photo by Bain, Public domain