I believe true , because the person reading the notes should be able to identify where each note came from.
Hope this helps ^_^
Disaster/crisis
Reviewer/critic
Cower/cringe
Scrunches/crisp
brittle/????
I don't have the book so I can't give a line of evidence but Atticus was all about teaching Jem and Scout those little life lessons without them even noticing so this instance was one of those little lessons he gives them. Hope this helps :)