I don't think I can be of much help on this one, but I will give you what I have. From 1810 records I only have (besides John) a Matthew listed and that includes surrounding counties. In 1800 I have a Ebenezer,"Mattehw" and William in Logan Co. If I remember right there is two books on familytree maker on the Alexanders. If you know you family was in Augusta Co. Va. then you need to check out Chalkleys list. Its on rootsweb. I'm looking for info on William James Alexander. He shows up on the 1830 Greenup Co. census. From that census I believe he was born in 1800 or after. His father is said to be Jesse and Mother (maybe) Martha. I did find your Thomas on the census and tax list for Logan Co.