About this Famous People
Source : Tim DOWLING
Tracy Nelson is a third generation performer; her parents were Rock and Roll Hall of Fame inductee Ricky Nelson and actress/artist Kristin Nelson (née Harmon). She has three younger siblings: Matthew Nelson, Gunnar Nelson of the '90s rock group Nelson, and Sam Nelson. Her paternal grandparents are Ozzie and Harriet Nelson and her maternal grandparents are Tom Harmon, a Heisman Trophy winner from the University of Michigan, and actress Elyse Knox. She is also the niece of actors David Nelson, Mark Harmon, and Kelly Harmon.
Source : http://www.wikipedia.org/