John D. Ryan (industrialist)
John Dennis 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.
John Dennis Ryan | |
|---|---|
Ryan in 1917 | |
| President of Anaconda Copper Mining Company | |
| Personal details | |
| Born | November 10, 1864 Hancock, Michigan |
| Died | February 11, 1933 (aged 68) Manhattan, New York City |
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