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Sidney Johnston Jennings

mining engineer

Sidney Johnston Jennings, American mining engineer.


Jennings, Sidney Johnston was born on August 13, 1863 in Hawesville, Kentucky, United States. Son of James Rody and Katherine Sharp (Hennen) Jennings.


Early education Tours, France, and in Germany. C.E., Lawrence Scientific School (Harvard), 1885. Post-graduate course, University of California.


Surveyor, New Alameda Quicksilver Mining Company, California, 1885-1887, Anaconda Copper Company, Butte, Montana, 1887-1889. Manager Willow Copper Company, South Africa, 1889-1890. Assistant general manager De Beers Consolidated Mines, Kimberley, 1891-1893.

Manager Crown Deep Mine, Ltd., Johannesburg, 1893-1896. Manager Crown Mines and consulting engineer H. Eckstein & Company, 1896-1907. Vice president United States Smelting, Refining & Mining Company, since 1908.

Director Cia de Real del Monte y Pachuca. President Hanover Bessemer Iron & Copper Company Was chairman works committee of Town Council, Johannesburg, after occupation of the city by the British, providing the city with electric trolley lines, adequate water supply and underground sewers. President American Mining Congress, 1922-1923.


Married Amy Florence (Horne) Valpy, August 18, 1893. Children: John Morris, Amy Sidney, Mary Agnes, Philip Hennen.

James Rody Jennings

Katherine Sharp (Hennen) Jennings

Amy Florence

John Morris Jennings

Amy Sidney Jennings

Mary Agnes Jennings

Philip Hennen Jennings