At age 23 in 1780 , Mason 's eldest son George Mason V inherited Mattawoman from his maternal grandmother , Sarah Eilbeck .
George Mason bequeathed Mattawoman and all his lands upon Chicamuxen and Mattawoman creeks to his son William Mason .
At age 23 in 1780 , George Mason 's eldest son George Mason V inherited Mattawoman from George Mason 's maternal grandmother , Sarah Eilbeck .
George Mason bequeathed Mattawoman and all his lands upon Chicamuxen and Mattawoman creeks to his son William Mason .