I don't know any of the marriages for these Williams Alexanders other than my line. The biggest problem is that name is so common. I have about 40 to 50 marriages for Williams (never counted) and it is hard to match them up unless I have better data to look for. As for the William owning all the property in Ky. I have no further data that I can think of, but he sure sounds like a interesting story. I don't even know if its is the same William or not, but if it is I'm willing to bet there is more info on him at the Filson Club. I do know there was at least one in the Revolutional War. The time frame sure fits.