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Johan Otto Emmanuel Trotz

Johan Otto Emmanuel Trotz, Swedish engineer.


  • Trotz, Johan Otto Emmanuel was born on March 6, 1860 in Hammersta, Sweden. Son of Sir Carl Otto and Lady Ebba Maria Augusta (nee Baroness Löwen) Trotz.

  • Education

    • Graduate in mining and metallurgy, Royal High School of Mines, 1883. In research work for Association Swedish Iron Masters, 1884. Came to the United States, 1887.


    • Chemist, inspector of material, general superintendent and metallurgical engineer, attached to office of president of the United States Steel Corporation, 1887-1904. Consultant and expert engineer, and designer and superintendent of erection of steel plant and rolling mills of John A. Roebling’s Sons Company, Trenton, New Jersey, 1904-1908. President and general manager Kockums Jernverks Aktb., Sweden, since 1910.

      Director Aktb. Svenska Handelsbanken, etc. Knight Order of Vasa, by King Oscar of Sweden, 1907. Address: Svanevik, near Ronneby, Sweden.


    • Married Selma P. Ahlström, June 7, 1890.
    • father: Sir Carl Otto Trotz
    • mother: Lady Ebba Maria Augusta (nee Baroness Löwen) Trotz
    • spouse: Selma P. Ahlström
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    Born March 6, 1860
    Died July 18, 1925
    (aged 65)