I have A William in Bourbon And Fayette Co. on my 1790 list. I have seven lisited for 1800 and probably more than that for 1810. The one you probably will be interested in is the William I have listed in Logan Co. during 1800. It was taken from a tax list. He does not show up in 1810 although there is other Alexanders in Logan during that time and some could be his children. Let me know if I can be of fathur help.