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John Koebig Leydon

John Koebig Leydon, American investment banker.


  • Leydon, John Koebig was born on October 14, 1916 in Philadelphia, Pennsylvania, United States. Son of John William and Dorothy (Koebig) Leydon.

  • Education

    • Bachelor of Science, United States Naval Academy, 1938. Master of Science, California Institute Technology, 1945.


    • Commissioned ensign United States Navy, 1938, advanced through grades to rear admiral, 1964. Designated naval aviator, 1941. Engineering assignments, 1945-1959.

      Commander United States Naval served in United States Ship Ranger, 1941-1943. Various areo. Air Turbine Test Station, Trenton, New Jersey, 1959-1961. Deputy chief naval material Navy Department, 1963-1964, chief naval research, 1964-1967.

      Partner Paine, Webster, Jackson & Crutis, 1967-1971. Director Access Crop., Laser Diode laboratories, Inc. Crutis, 1967-1971. Director Access Crop., Laser Diode laboratories, Inc.


    Clubs: Army Navy Country (Washington).


    • Married Elizabeth Martin Rivinus, July 11, 1940. Children: John Koebig, Edward Rivinus, Lisa Martin, Christopher Francis.
    • father: John William Leydon
    • mother: Dorothy (Koebig) Leydon
    • spouse: Elizabeth Martin Rivinus
    • children: John Koebig Leydon
    • Edward Rivinus Leydon
    • Lisa Martin Leydon
    • Christopher Francis Leydon
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    Born October 14, 1916
    Died February 2, 1971
    (aged 54)