When she married Aristotle Onassis in 1968, Jackie Kennedy became Jackie Onassis or Jackie O (as she was affectionately known) Until her death in 1994, she never had a bad fashion day and never took a bad photo, which is why she is still referred to as one of the most influential people in fashion.
Jacqueline Lee "Jackie" Bouvier, later "Kennedy" and "Onassis" July 28, 1929—May 19, 1994), aged 64,was the wife of the 35th President of the United States, John F. Kennedy, and First Lady of the United States during his presidency from 1961 until his assassination in 1963. Five years later she married Greek shipping magnate Aristotle Onassis; they remained married until his death in 1975.
Jackie Kennedy thanks the nation in 1964 for all of the cards and letters that she and the children received following the death of President Kennedy. She received "nearly 800,000 in all", and she acknowledged each one personally, a project that took her 10 years to complete.