Alexander Martin (Allegheny County, Pennsylvania) He married Sarah Lucas in 1762 in Orange County, Virginia. James Martin (Spencer County, Indiana) The heads of the De Burgo clan had long previously shaken off their allegiance to the English Crown, and taken the Irish titles of Mac William Eighter and Mac William Oughter meaning the Upper and the Lower, from the position of their territories in Galway and Mayo from whom the Earls of Clanricard and Mayo respectively descend.