JAMES I, 50TH (12TH) EARL 1789-1823

Sir James Sinclair, Baronet of Mey, was in May 1790, served as nearest lawful heir-male of William Saint-Clair, second of his name, Earl of Caithness, and his claim to the peerage was sustained by the House of Lords. His lordship, who was Lord-Lieutenant of Caithness and Postmaster-General of Scotland in 1811, married 2nd January 1784, Jane, second daughter of General Alexander Campbell of Barcaldine (by his wife Helen, daughter of George Sinclair of Ulbster), and by her (who died 2nd April 1853) had issue -

1. JOHN, Master [heir apparent] of Caithness, Lord Berriedale, born 1780, died unmarried in 1802.
2. ALEXANDER, 51st Earl.
3. JAMES, Lieut.-Colonel in the army, born 24th October 1797; married in 1819 Elizabeth, youngest daughter of George Tritton, and died without issue 18th January 1856.
4. PATRICK CAMPBELL, born in 1800, married Isabella, daughter of Major-General McGregor; and died 13th March 1834.
5. ERIC GEORGE, Royal Navy, born 1801; died 26th September, 1829.
6. JOHN, an officer in the army; born 1808; married 22nd October 1833, Maria Petronella, youngest daughter of John Church, and died 8th January 1861.
7. JANET, married 1805, James Buchanan of Craigend Castle.
8. HELEN, died unmarried.
9. CHARLOTTE ANN, married in 1810 Major-General Alexander Murray McGregor, and died 7th April 1854.

ALEXANDER III, 51ST (13TH) EARL 1823-1855

1. JAMES, his successor, born 16th December 1821.
2. ALEX ERIC GEORGE, of 91st Foot; born 20th May 1827; died 21st August 1857.