Background
He was born Walter Calverley at Otley, the only son of Sir Walter Calverley, 1st Baronet, and Julia Blackett, daughter of Sir William Blackett, 1st Baronet.
He was born Walter Calverley at Otley, the only son of Sir Walter Calverley, 1st Baronet, and Julia Blackett, daughter of Sir William Blackett, 1st Baronet.
He entered Balliol College, Oxford, aged 16 on 28 February 1724. The marriage took place on 29 September 1729 at Newcastle. His change of surname to Blackett was later confirmed by an Acting of Parliament in 1733.
He was an Alderman of the City of Newcastle and Mayor five times, in 1735, 1748, 1756, 1764 and 1771.
He inherited Sir William Blackett"s mansion at Pilgrim Street, Newcastle and in 1749 inherited his father"s baronetcy and estates at Calverley and Esholt, Yorkshire, which he soon sold. He settled at Cambo, where he expended considerable sums on improvements to Wallington Hall, which he remodelled in the then fashionable Palladian style to designs by architect Daniel Garrett.
In 1755, he commissioned Garrett to build a folly in the style of a medieval castle (Rothley Castle) on the hillside above Wallington. He was buried at Calverley.
Under the will of Sir William Blackett his estates passed on the death of Sir Walter to Sir Thomas Wentworth, the eldest surviving son of Sir Walter"s aunt.
11th Parliament of Great Britain. 8th Parliament of Great Britain. 9th Parliament of Great Britain.
10th Parliament of Great Britain.
12th Parliament of Great Britain. 13th Parliament of Great Britain.
14th Parliament of Great Britain]
He was High Sheriff of Northumberland in 1731-1732 and elected Tory Member of Parliament in the British House of Commons for Newcastle-upon-Tyne over seven parliaments from 1734 until his death.