... On both the fathers' and the mothers' side, the Hamiltons are of Scotch-Irish descent and of the Presbyterian faith, and, tradition says, were driven from Scotland over to Ireland at the time of the Catholic persecution of Protestantism in Scotland. William Hamilton, the paternal grandfather of the men who settled here, came from Ireland to Pennsylvania about the middle of the last century. When or where he was married is not known, but his wife's name was Isabella Thompson. Soon after a settlement was begun in Kentucky, he with his wife and three sons (Robert, Thomas and Samuel) emigrated to that State and settled on McBride's Creek, in Bourbon County, where he died not many years thereafter. ...