He might already be on Wikitree?
Either or/both of these: Thomas Saint George (abt. 1465 - abt. 1500)
Thomas St George (1450)
You are welcome Mr. Swift. I can't remember how I found him, but think it was by using Google & Geni to get more info, then I found Thomas Saint George (abt. 1465 - abt. 1500). I used his son in law's name (Docwra) to find him here.