1720 - 1795 (75 years)
| Right Honorable Sir John, 1st Baronet Sinclair of Ulbster, Sinclair | |
| B: | 10 May 1754 |
| Thurso Castle, Ulbster, Caithnesshire, Scotland | |
| D: | 21 December 1835 |
| George Street, Edinburgh, Midlothian, Scotland | |
| Diana Macdonald | |
| M: | 6 Mar 1788 |
| Ireland | |
 | John Stewart Sinclair 1853-1919 |
| John Stewart Sinclair | |
| B: | April 1853 |
| Leeds, Yorkshire, England | |
| D: | 30 Apr 1919 |
| Cheltenham, Gloucestershire, England | |
| Clara Sophia Birchall 1862-1948 |
| Clara Sophia Birchall | |
| B: | 3 Apr 1862 |
| Knaresborough, Yorkshire West Riding | |
| M: | 9 Aug 1893 |
| Upton St Leonards, Gloucestershire | |
| D: | 16 May 1948 |
| Cheltenham, Gloucestershire, England | |
| William Sinclair, Rev. 1804-1878 |
| William Sinclair, Rev. | |
| B: | 4 Sep 1804 |
| Edinburgh, Scotland | |
| D: | 8 Jul 1878 |
| Thakeham, Sussex | |
| Sophia Mary Georgiana Tripp 1824-1885 |
| Sophia Mary Georgiana Tripp | |
| B: | 24 Apr 1824 |
| Fittleworth, Sussex, England | |
| D: | 22 July 1885 |
| Fulham, London | |
| The Honorable Dame Diana Jane Elizabeth Sinclair\MacDonald | |
| B: | 28 September 1769 |
| Thurso Castle, Thurso, Caithness, Sctland | |
| M: | 6 Mar 1788 |
| London, England | |
| D: | 22 April 1845 |
| Edinburgh, City of Edinburgh, Scotland | |
| Diana Sinclair 1791-1863 |
| Diana Sinclair | |
| B: | 1791 |
| D: | 30 May 1863 |
| Alexander Sinclair 1794-1877 |
| Alexander Sinclair | |
| B: | 17 June 1794 |
| D: | 9 August 1877 |
| Catherine Sinclair 1800-1864 |
| Catherine Sinclair | |
| B: | April 1800 |
| D: | 1864 |
| London, City of London, Greater London, England | |
| Unknown |
| Lady Janet Gordon Sutherland (of Strathnaver) | |
| B: | 16 May 1720 |
| Dornoch, Sutherland, Scotland | |
| D: | 9 Jun 1795 |
| Sutherland, Scotland | |
| George of Ulbster Sinclair 1715-1776 |
| George of Ulbster Sinclair | |
| B: | 22 Apr 1715 |
| Halkirk, Caithness, Scotland | |
| D: | 1776 |
| Caithness, Scotland, UK | |
This is of course still a work in progress. Any input is welcome: just email: allan.sargison@gmail.com Ngā mihi maioha Allan
