David Steuart Erskine, 11th Earl of Buchan, styled Lord Cardross between 1747 and 1767, was a Scottish antiquarian, founder of the Society of Antiquaries of Scotland in 1780 and first vice president, and patron of the arts and sciences.

Thomas Erskine, 1st Baron Erskine, was a British Whig lawyer and politician. He served as Lord High Chancellor of Great Britain between 1806 and 1807 in the Ministry of All the Talents.