The first of the Campbells of Marchmont, Berwickshire, was Sir William Purves, knight, grandson of William Purves of Abbey Hill, an eminent lawyer and staunch loyalist, who was appointed by Charles the Second solicitor-general for Scotland, and created a baronet of Nova Scotia, 6th July 1666. He died in 1685, and his eldest son. Sir Alexander Purves, was nominated by patent his successor in the solicitor- generalship. He married a daughter of Hume of Ninewells, and died in 1701. His eldest son Sir William Purves, was succeeded in 1730 by his eldest son Sir William, who married Lady Anne Hume Campbell, eldest daughter of Alexander, second earl of Marchmont, by whom he had three daughters and a son, Sir Alexander, who married four times, and died in 1813. His eldest son, Sir William, born 4th October 1767 assumed, on inheriting the estates of his maternal family the additional surname of Hume-Campbell. His uncle, the Hon. Alexander Hume Campbell, lord registrar of Scotland, (died without surviving male issue in 1760, and his cousin, Alexander, fourth earl of Marchmont, in 1781, when this title became dormant [see Marchmont, earl of]. Sir William died 9th April 1833, leaving an only child, Sir Hugh Hume Campbell of Purves Hall, the seventh baronet, born in 1812; M.P. for Berwickshire from 1834 to 1847.  Source: The Scottish Nation Vol 1; pp569