Ancestry of
Sandra Day O'Connor

First Female U.S. Supreme Court Justice

Robert Willoughby

View famous kin of Robert Willoughby

• • 14th Great-grandfather of Sandra Day O'Connor — 17th Generation
  • Ahnentafel No:
  • 72404 
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  • Cecily de Welles
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  Christopher Willoughby (Ahnentafel No:36202 )

• Sources for Robert Willoughby

  • ¹ Roberts, Gary Boyd, The Royal Descents of 600 Immigrants to the American Colonies or the United States (2 vols.), Baltimore: Genealogical Publishing Co. (2008), 342.
  • ² Roberts, Gary Boyd, comp., Ancestors of American Presidents, 2009 Edition, Boston: New England Historic Genealogical Society (2009), 429.