Jacqueline Lee Bouvier Kennedy Onassis (July 28, 1929 - May 19, 1994) was the wife of John F. Kennedy from 1953 to 1963. She served as First Lady of the United States from 1961 until her husband's assassination in 1963. She was married to Aristotle Onassis from 1968 until his death in 1975. In later years she had a successful career as a book editor. She preferred her first name to be pronounced in the French manner ( ). After her marriage to Kennedy she was known as Jacqueline Kennedy or Jackie Kennedy; upon her marriage to Onassis and thereafter she was known as Jacqueline Onassis, Jackie Onassis, or more informally as Jackie O.