Aww... I like
Jacqueline a lot too.
I would probably not use it, if she would also bear the surname
Kennedy. But ... if you think about it, her own generation would not have the strength of association that mine and even yours does, with images of
Jackie O. It'd be sort of like someone in your generation being named
Bess Truman. Which wouldn't have been quite as easily assumed to be after a FL, as being a
Betty Ford or Rosalynn
Carter at the time, right? Whatever ... I hope you see my point, just that
Jackie O is fading into history a bit, and your future daughter's peers will not think it's as namesakey as you do.
Caroline _____-
Kennedy is sort of similar, I agree with coldplayer. =( I wouldn't be inclined to use that, either. Still and all ... the famous Kennedys are generally a positive image to associate with. If you don't love any other names at all, FWIW I don't think I'd be terribly unhappy with my parents if they named me
Jacqueline or
Caroline, even if everyone always mentioned the Kennedys when I introduced myself. YMMV