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Leopold C.  Bierwirth

Leopold Charles Bierwirth was born in New York City on June 5, 1838, the son of Emily Gaudain and Gebhard Heinrich Leopold von Bierwirth. At the age of 16 he left home to study chemistry, metallurgy and mining at the Mining Academy in Clausthal, Germany, and the University of Heidelberg. In 1857 he moved to England for two years to gain experience in the iron foundries and rolling mills. After returning to America at the age of 21 he worked for the Trenton (New Jersey) Iron Company for five years, and then in 1864 moved to Dover, New Jersey where he worked as secretary and general agent for the New Jersey Iron Mining Company. He married Hattie A. ____ in 1875, and died on February 24, 1902. He was a member of the AIME and a contributing member of the New Jersey Historical Society. Canfield (1923) says he built a "small general collectiuon of good specimens" which his widow presented to Swarthmore College in 1917.

CANFIELD, F. A. (1923) The final disposition of some American collections of minerals. Privately printed.
PATTERSON, J. H. (1904) Transactions of the American Institute of Mining and Metallurgical Engineers, xxxvii-xxxviii.
U.S. Federal Census, 1900.
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