Its pretty sad.
Boone and Yost died this year.
Sheryl Yost (The daughter) died of a undiagnosed heart condition at a young age.
Bertier died in that car accident.
When the movie came out I did the research on it, and basically they had to down play how good that team was in their 13-0 year. Most of the games were absolute blowouts, and that was still considered to be one of the most dominant high school defenses in history.
Here's the breakdown of that season
http://www.71originaltitans.com/teamstats1.html
roster
http://www.71originaltitans.com/players1.html