Thank you for the fascinating opening post.
I grabbed The Life of George Washington by David RAMSEY - 1807 primarily for clues that George WASHINGTON was indeed killed early on in the Revolution. There are a few and if so, that WASHINGTON was replaced with Adam WEISHAUPT for the remainder of that individual's lifetime I cannot say so as fact. I had dismissed several allusions and lost them for supporting evidence but they caused the portrait of WASHINGTON in the Mason Museum to jump out of the case at me:
Adam WEISHAUPT
Here is a closeup of the letter above the portrait.
After years of casual contemplation I feel it more likely that the Masons generated this myth about WASHINGTON and never really intended for me to be calling on their museum and library.
Similarly there is lore about WASHINGTON around the CLYMER band of Rosicrucians as they revere George LIPPARD.