Sir John Sinclair, who was created a baronet in 1786, was twice married. He had two daughters by his first wife. One source gives his wife's name as Lady Catherine Camilla Tollemache, daughter of William Talmash, Lord Huntingtower.[3] whilst a later source says her name was Sarah Maitland who died in 1785. The two daughters were Hannah and Janet, who became a religious writer.[4]
Sinclair was married, secondly, to Diana, daughter of Alexander Lord Macdonald, by whom he had thirteen children. His eldest son, Sir George Sinclair, 2nd Baronet (1790–1868) was a writer and a Member of Parliament, representing Caithness at intervals from 1811 until 1841. His son, Sir John George Tollemache Sinclair, 3rd Baronet, was member for the same constituency from 1869 to 1885. The first Baronet's third son, also John (1797–1875), became Archdeacon of Middlesex; the fourth son was Captain Archibald Sinclair RN; the fifth son, William (1804–1878), was Prebendary of Chichester and was the father of William Macdonald Sinclair (b. 1850), who in 1889 became Archdeacon of London; the fourth daughter, Catherine Sinclair became an author. On 14th February 1786, John Sinclair was created a baronet with remainder in default of his own male issue, to the male issue of his daughters respectively. Styled Sir John Sinclair of Ulbster. His successor was the son of his second wife,
JOHN GEORGE SINCLAIR/JANET SUTHERLAND M 10/05/1754 041/ 20 182 Thurso
Sinclair John 1788 Westminster Marriages St George, Hanover Square, Middlesex, England
Scotland's People; SINCLAIR JOHN 81 M 21/12/1835 685/3 370 11 Canongate
https://en.wikipedia.org/wiki/Sir_John_Sinclair,_1st_Baronet
* http://www.fionamsinclair.co.uk/genealogy/Caithness/Ulbster.htm
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S > Sinclair | S > Sinclair of Ulbster > John (Sinclair) Sinclair of Ulbster 1st Bt
Categories: Members of Parliament, Caithness | Members of Parliament, Great Britain 1780 | Members of Parliament, Great Britain 1790 | Members of Parliament, United Kingdom 1802 | Members of Parliament, United Kingdom 1807 | Members of Parliament, Lostwithiel | Members of Parliament, Great Britain 1784 | Members of Parliament, Petersfield | Members of Parliament, Great Britain 1796 | Members of Parliament, United Kingdom 1801 | Descent Macbeth Brodie of Brodie, circa 1210