I know that the Vermont music camp burned down twice. Maria Von Trapp was decimated by the many tragedies in her life.
I saw her on a television talk show in the 1970's; she looked like my own German/Dutch Grandmama.
Imagine the life she had...she was a nun, then the stepmother to seven, then the wife of a sea captain, then she had to leave her homeland, then she had her own three children,....wow!
And then to see her life on stage ... awesome, even tho it did not pay off in terms of $ as it should have.
The children who were in the movie also have their own stories to tell. Angela Cartwright had her own business her in the SFV, and is now on the internet, hawking one-of-a-kind things as, well, a menorah featuring Santa Claus and his eight tiny reindeer.