She passed away April 27, 2018 at the age of 72 of an apparent heart attack her daughter Tracey Nelson announced. I remember the twin boys Gunnar and Matthew, and who could forget Ricky Nelson my goodness and his parents Ozzie and Harriet. I didn't know she was Mark Harmon's NCIS sister...wow what a small world. There was a younger son Sam as well.
Looked like such a nice family when I was watching them as a child but I know they had their fair share of challenges.