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Russell Cornell Leffingwell

Russell Cornell Leffingwell, American banker, lawyer, ex-assistant secretary of the treasury. Decorated Officer Legion of Honor, Officer Crown of Italy. Fellow Royal Economics Society; member American Economics Association.


  • Leffingwell, Russell Cornell was born on September 10, 1878 in New York City. Son of Charles Russell and Mary (Cornell) Leffingwell.

  • Education

    • Bachelor of Arts, Yale, 1899, Master of Arts, 1919, Doctor of Laws, 1950. Bachelor of Laws, Columbia University, 1902. M Lucy Hewitt, January 27, 1906 (deceased February 8, 1959).


    • Began practice of law, New York City, 1902. Member Cravath & Henderson, 1907-1917. Was special assistant to secretary of treasury in flotation of Liberty Loan, May 1917.

      Assistant secretary of treasury, 1917-1920. Member Cravath, Henderson, Leffingwell & de Gersdorff, 1920-1923. Member J. P. Morgan & Company, 1923-1940.

      Director and past chairman, J. P. Morgan & Company, Inc. Trustee, past chairman Carnegie Corporation Director, ex-chairman Council Foreign Relations. Honorary vice president Community Service Society.

      Honorary trustee Yale Library Associates, New York School Social Work.


    Fellow Royal Economics Society. Member American Economics Association. Clubs: Knickerbocker, Century, University, Pilgrims, Yale, Down Town, Piping Rock, Seawanhaka-Corinthian Yacht (New York).


    • father: Charles Russell Leffingwell
    • mother: Mary (Cornell) Leffingwell
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    Born September 10, 1878
    Died October 2, 1960
    (aged 82)