Dictionary of National Biography, 1885-1900/Calderwood, William
CALDERWOOD, Sir WILLIAM, Lord Polton (1660?–1733), lord of session, was the son of Alexander Calderwood, baillie of Dalkeith, and was admitted advocate at the Scottish bar in July 1687. After the revolution he was made deputy-sheriff of the county of Edinburgh, and some time before 1707 received the honour of knighthood. He was appointed to succeed Sir William Anstruther of Anstruther as an ordinary lord in 1711, under the title of Lord Polton. He was at the same time nominated a lord of justiciary. He died on 7 Aug. 1733, in his seventy-third year.
[Haig and Brunton's Senators of the College of Justice, p. 492.]