Hi-sorry I didnt see this earlier
Not sure which census info is correct for Samuel BUT, I can definitely tell you he is buried in Allegheny Cemetery in a large plot with Keller on it. I know this because Jacob Utzler-- his grandfather-- is my gr gr gr grandfather too, and Jacob is buried there. I think that the census people wrote down W because they had problems believing in U as a middle initial.
As you can see from "the tree" my father is Ralph A.
He spoke of an Elsie- maybe a cousin, but I was never sure who she was.
Samuel Rinaldo always said he was named for the pirates-- and that we came to America on a pirate ship--must have been a very long time ago! (Though Samuel Swan is also a "pirate name " ;) At least you know the U is literally carved in stone.
I will try to look at the other stones, but as I remember it they said things like Mom and Dad, rather than names