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Charles Herschel Koyl

Charles Herschel Koyl, Canadian engineer.


  • Koyl, Charles Herschel was born on August 14, 1855 in Amherstburg, Ontario. Son of Review Ephraim Lillie and Frances (Culp) Koyl.

  • Education

    • Bachelor of Arts, Victoria College, Cobourg, Ontario, 1877. Post-graduate student Johns Hopkins, 1879-1881, fellow in physics, 1881-1883.


    • Physical science master Wesleyan College, Stanstead, Quebec, 1877-1879. Head department mathematics and physics, high school, Washington, 1885-1887. Professor physics, Swarthmore College, 1887-1889.

      Vice president National Switch & Signal Company, 1859-1891. President National Drying Company, 1891-1893. Scientific assistant to Colonel Waring, commissioner street cleaning, New York, 1895-1896.

      Manager Automatic Banjo Company, New York, 1896-1899. Manager Industrial Water Company, 1899-1902. Consultant practice; engineer water service G.N. Railway, 1912-1919, and of Commerce.,M.&St.P. Railway, since 1919.

      Delegate to International Congress of Electricians, Philadelphia, 1884. John Scott Legacy Medal, Franklin Institute, for invention of the parabolic semaphore, 1889. Home: Chicago, Ill.


    • Married Georgiana Thacher Washburn, November 6, 1885. Married second, Adèle T. Sanford, April.
    • father: Review Ephraim Lillie Koyl
    • mother: Frances (Culp) Koyl
    • spouses: Georgiana Thacher Washburn
    • Adèle T. Sanford
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    Born August 14, 1855
    Died December 18, 1931
    (aged 76)