Jacqueline Kennedy Onassis was listed in an annual poll by Gallup.
Gallup 's most admired man and woman poll is an annual poll that Gallup has conducted at the end of most years since 1948 . Jacqueline Kennedy Onassis . She ranks as one of the most popular First Ladies and in 1999 was named on Gallup 's list of Most Admired Men and Women in 20th-century America .