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Russell Cornell Leffingwell

banker , lawyer

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.


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).


Charles Russell Leffingwell

Mary (Cornell) Leffingwell