This is interesting. Where I grew up in Western NY, Orleans county; there’s a place called “Three Bridges”. An old (really old) hotel that is now low-end apartments has a sign that says “Lincoln slept here”. This has been there for a long time... The sign was very aged in the 70s when I was there. We always believed it was a fact.. Who knows? I don’t even know if it is still there.
LBJ used the next door neighbor’s potty and it had a sign on it at one time. When new people move in, I tell them the story. They never believe me.