John D. Ryan (industrialist)

John Dennis Ryan
Ryan in 1917
President of Anaconda Copper Mining Company
Personal details
Born(1864-11-10)November 10, 1864
Hancock, Michigan
DiedFebruary 11, 1933(1933-02-11) (aged 68)
Manhattan, New York City

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.

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