Desmond is a bit dated, but intriguing and refreshing on a small child. I wouldn't personnally associate it with an elderly person. I also like
Olivia,
Lana,
Emma,
Austin and
Hunter.
Jackie is ok as a nickname for
Jacqueline.
I've never really liked
Piper.
And I used to love
Alexander, but I don't like it that much any more.