'Sinclair08'Index links to: Lead / Letter
Families covered: Sinclair of Longformacus, Sinclair of Stevenson, Lockhart of Castle Hill (Castlehill)
[This page was first uploaded with just the lower section as 'SinclairXX'. It was renamed on 04.12.04 when the upper section was added.]

TSP (Sinclair) suggests that James, son of Sir John St. Clair of Herdmanston, was probably the ancestor of this family (presumably being the Sir James shown as son of the following William). Provisionally, we follow Douglas in showing a descent from the Sinclairs of Rosslin but note that this may be disputed.
William Sinclair of Longformacus (d temp King David who r. 1329-1371)
1. Sir James Sinclair of Longformacus (d before 01.1418)
  A. James Sinclair of Longformacus (d after 1436)
  i. David Sinclair of Longformacus (d before 1461)
  a. David Sinclair of Longformacus (a 1477)
  m. Elizabeth Murray
  (1) James Sinclair of Longformacus (d 1498)
  m. Isabel Howieson
(A) Alexander Sinclair of Longformacus
  m. Marion Foreman
  (i) James Sinclair of Longformacus (d before 1543)
  (a) Matthew Sinclair of Longformacus (d 1603)
  m. Elizabeth Swinton (dau of Sir John Swinton of Swinton)
  ((1)) Robert Sinclair of Longformacus (d 1613)
  m. Margaret Douglas (sister of Sir Archibald Douglas of Whittingham)
  ((A)) James Sinclair of Longformacus (d 1633)
  ((i)) Sir Robert Sinclair, 1st Bart of Longformacus and/or Barnbougle (d 1678)
  m1. Elizabeth Douglas (dau of Sir Robert Douglas of Blackerstoun)
((a)) Sir John Sinclair, 2nd Bart of Longformacus (d before 1698)
  m. Jean Towers (dau of Sir John Towers of Innerleith)
  (((1))) Sir Robert Sinclair, 3rd Bart of Longformacus
  m. Christian Cockburn (dau of Adam Cockburn of Ormiston)
  (((A))) Sir John Sinclair, 4th Bart of Longformacus (dsp)
  m. Sidney Johnston (dau of Robert Johnston of Hilton)
  (((B))) Sir Henry Sinclair, 5th Bart of Longformacus (dsp)
  (((C))) Jean Sinclair
  m. (03.1733) Sir Charles Gilmour of Craigmillar
  (((D))) Christian Sinclair (d 15.07.1790)
  m. (by 1760) Sir John Inglis, 4th Bart of Cramond
  (((E)))+ 4 daughters
  ((b)) George Sinclair
  m. Jean Purves (dau of George Purves of Ewford)
(((1))) Robert Sinclair
  m. Lilias Anderson
  (((A))) Sir John Sinclair, 6th Bart of Longformacus
  m. Elizabeth Allan (dau of Charles Allan)
  (((2)))+ other issue - George (dsp), Euphame (d unm)
  ((c)) Sir Archibald Sinclair had issue
  ((d)) Margaret Sinclair
  m. William Home of Linthill
((e)) Alison Sinclair (bur 14.02.1669)
  m. Sir James Cockburn of Ryslaw (b c1646, d 1711)
  ((f)) daughter
  m. Capt. _ Urquhart
  ((g)) Elizabeth Sinclair (b 17.06.1650)
  m1. Sir James Primrose of Barnbougle (b 1645, dvp)
  m2. Francis Montgomery of Giffen (d before 01.1729)
  m2. Margaret Alexander (dau of William Alexander, 'Viscount Canada')
  ((h)) Catherine Sinclair (b 05.1673, d young)
((i)) Jean Sinclair (d 12.12.1700)
  m. (19.06.1688) John Hamilton, Master of Bargany (dvp bur 27.03.1690)
  ((j)) Anne Sinclair
  m. (17.02.1698) John Swinton of that ilk (d 1723)
  ((B)) John Sinclair of Muirtown (a 1627, minister of Spot)
  m. Marion Stewart
  ((i)) James Sinclair
  ((2)) George Sinclair (d c1620) - continued below
  ((3)) Thomas Sinclair (d before 1622)
  ((4)) James Sinclair
  m. Elizabeth Home
  ((5)) Sybilla Sinclair probably of this generation
  m. William Cockburn of Chouslie (d 1628)
  ((6)) Elizabeth Sinclair probably of this generation
  m. Alexander Cockburn (d 29.05.1597)



George Sinclair (d c1620) - continued above
BP1934 starts with the following Sir John except to identify him as (a) younger son of Matthew Sinclair, 9th of Longformacus, by Elizabeth Swinton i.e showing him a generation earlier than we show. Douglas shows George, a younger son of Matthew by Elizabeth Swinton, as ancestor of the Sinclairs of Stevenson and BP1870 (Sinclair of Stevenson) confirms this George as father of ...
1. Sir John Sinclair, 1st Bart of Stevenson (d c1649)
  m. Marion McMath
A. John Sinclair (dvp 1643)
  m1. (mcrt c29.05.1638) Isabel Boyd (dau of Robert Boyd, 7th Lord)
  i. Sir John Sinclair, 2nd Bart of Stevenson (d unm c1652)
  ii. Sir Robert Sinclair, 3rd Bart of Stevenson, Sheriff of Haddington (d 07.1713)
  m1. (10.09.1663) Helen Lindsay (dau of John Lindsay, Earl of Crawford and Lindsay)
  a. Sir John Sinclair, 4th Bart of Stevenson (d 1752)
  m. (1698) Martha Lockhart (d 15.05.1752, dau of Sir John Lockhart of Castlehill, 'Lord Castlehill')
(1) Sir Robert Sinclair, 5th Bart of Stevenson (d 1752/4)
  m. (09.1733) Isabella Ker (dau of Col. James Ker)
  (A) Sir John Sinclair, 6th Bart of Stevenson (d 13.02.1789)
  m. Mary Blair (dau of William Blair of that ilk)
(i) Sir Robert Sinclair, 7th Bart of Stevenson (d 04.08.1795)
  m. (02/3.04.1789) Madeline Gordon (b 1772, d 31.05.1847, dau of Alexander Gordon, 4th Duke of Gordon)
  (a) Sir John Gordon Sinclair, 8th Bart of Stevenson (b 31.07.1790, d 13.11.1863, Admiral) had issue
  m. (15.06.1812) Anne De Courcy (d 23.09.1857, dau of Admiral Hon. Michael De Courcy)
  (B) James Sinclair, later Lockhart of Castlehill (d 05.07.1808?)
  m. (17.07.1773?) Anne (sb Mary Emelia?) Nisbet
  (i) Robert Lockhart of Castlehill or Castle Hill, Cambusnethan and Stonehouse (d 02.11.1850) had issue
  m1. (09.10.1804) Eliza Newman (d 04.1816, dau of Richard Newman Newman of Thornbury Park, Gloucestershire)
  m2. (30.06.1817) Charlotte Simpson Mercer (d 18.03.1869, dau of Capt. William Mercer of Potterhill)
Ancestors of the 10th and later Baronets who took the name Sinclair-Lockhart.
  (ii)+ 4 daughters
  (C)+ 2 sons and 4 daughters
  (2) James Sinclair, later Lockhart
  m. Charlotte Boyle (dau of James Boyle)
  (A)+ 3 daughters
  (3) George Sinclair, later Lockhart of Castlehill (dsp 05.05.1764, Senator of the Court of Justice as Lord Woodhall)
  (4) Anne Sinclair
  m. (mcrt 1731) George Bogle of Daldowie (b 1701, d 1782)
  b. Margaret Sinclair probably of this generation
  m. Robert Dundas of Arniston (d 1727, judge as Lord Arniston)
  m2. (sp) Anne Scott (dau of Sir William Scott of Ardross)
  iii. Marion Sinclair probably of this generation
  m. Sir Archibald Cockburn, Bart of Langton (bur 28.06.1705)
  C. Helen Sinclair probably of this generation
  m. William Hay of Aberlady (b 09.11.1604)
  B. Elizabeth Sinclair (bur 09.04.1686, 2nd dau) probably of this generation
  m. (mcrt 03.06.1629) Sir John St. Clair of Herdmanston

Main source(s):
(1) For upper section : Douglas's 'Baronage of Scotland', published in 1798 (Sinclair of Longformacus)
(2) For lower section : BP1934 (Sinclair Lockhart), BP1870 (Sinclair of Stevenson)
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