1744. He had six sons and two daughters. His eldest surviving son, William, had succeeded to his mother's title as Earl of Dumfries. His second son, James, inherited the earldom of Stair in 1747, which on his death in 1760 also passed to William. References 1678 births 1744 deaths Members of the Parliament of Great Britain for Scottish constituencies Shire Commissioners to the Parliament of Scotland Politics of Dumfries and Galloway People associated with Dumfries and Galloway Politics of Ayrshire Younger sons of earls 18th-century Scottish people Members of the Parliament of Scotland 1702–1707 British MPs 1707–1708 British MPs 1708–1710 British MPs 1722–1727 British MPs 1727–1734 British MPs 1734–1741 Scottish sheriffs