I assume if the family hadn't made it out, it would have been a big national story so I am assuming (and hoping) they did actually make it out. I think in this case, no news is good news.
If anyone is interested, I found an article about Mark and his group of Scouts who helped so many on the trail that day:
http://www.uniondemocrat.com/20110803104338/News/Local-News/Scouts-rescue-imperiled-hikersAlthough some of the small facts are incorrect from my direct observations, it is still an interesting read.
Mike