He was not only a Mason, he served as master (president) of his lodge. It’s still active today and they have his portrait on the wall along with everyone else who has served as master.
_____________________________________________________
I don’t know what to say to that. I have not studied it; only heard that he wasn’t. I guess it’s possible she was ashamed of it and tried to cover it up. Or it’s not a true story about her. Without researching primary documents, which I sure won’t be doing, I can’t say with certainty one way or the other. But it seems you have been close. Did Washington write about the Masons himself?
Most Masons would not write about it.
When I was young, I lived for a year with a family who were deeply involved in Freemasonry. I never heard anyone refer to it in any substantive way at all, despite a painting of the father in his regalia displayed in the front hall.