Who was married to the woman known as Jackie O until his assassination in 1963?
Jacqueline Kennedy Onassis Jacqueline Lee "Jackie" Kennedy Onassis (née Bouvier; ; July 28, 1929 – May 19, 1994) was the wife of the 35th President of the United States, John F. Kennedy, and First Lady of the United States from 1961 until his assassination in 1963.
Madeleine Astor Madeleine Talmage Force Fiermonte (June 19, 1893 – March 27, 1940) was an American socialite and a survivor of the  . She was also the second wife and widow of businessman John Jacob Astor IV.