Caroline Scott (1 October 1743 – 10 December 1753)
John Scott, styled Lord Scott of Whitchester (3 January 1745 – January 1749)[1]
Henry Scott (2 September 1746 – 11 January 1812), styled Lord Scott of Whitchester after his brother's death, Earl of Dalkeith after his father's death and succeeded as 3rd Duke of Buccleuch in 1751; had issue
Campbell Scott (17 October 1747 – 18 October 1766)
Lord Dalkeith was elected to Parliament as Whig Member of Parliament for Boroughbridge in a by-election on 22 April 1746. On 1 April 1750 he died of smallpox aged 29, and was buried in the Buccleuch crypt at St Nicholas Church in Dalkeith.
In 1755 his widow was remarried to Charles Townshend, later Chancellor of the Exchequer, by whom she had further issue. She was created Baroness Greenwich in her own right in 1767, and died on 11 January 1794. Her title had been limited to her descendants from her second marriage, and became extinct on her death.
References
^Buried at St James, Westminster, on 22 January 1748/9. Source: The Register of Marriages (and Burials) belonging to St James's Westminster. 1723-1754. 22 January 1748.