...Men demit for a variety of reasons, but if it was just from an appendant body he may not have had time to commit or any variety of reasons. ...
That's helpful information, thank you.
I'm embarrassed to say it hadn't even occurred to me that his demit from the Scottish Rite might not have amounted to his leaving
The Lodge altogether.
I think what led me to believe it had was the abrupt ending of the scrap-book (with several unused leaflets left), which coincides with the letter's position in it.
A stack of dues paid cards from the Order of the Eastern Star, as well as the Licking County Scottish Rite Club, seem to indicate that he stopped paying dues for another "appendant body" (?) concurrently (although I don't have an official Letter of Demit from the OES), and none of those cards postdate his letter from the SR.
Interestingly, I have one (and only one) OES dues paid card with my Grandmother's name on it.
Still, I suppose all I really have evidence of is his departure from two sub-groups of Freemasonry and/or my Grandma's decision to stop scrap-booking WRT her husband's many years in The Lodge.