'Sinclair15'Index links to: Lead / Letter
Families covered: Sinclair of Achingale, Sinclair of Assery, Sinclair of Caithness, Sinclair of Lybster (in Latheron), Sinclair of Murchil (Murkle), Sinclair of Scotscalder, Sinclair in Thurso

James Sinclair of Murchil (Murkle) (a 1613)
m. Elizabeth Stewart (dau of Robert Stewart, 1st Earl of Orkney, natural son of King James 5th)
1. Sir James Sinclair of Murchil (Murkle)
  m1. Margaret Dundas
m2. (mcrt 10.1634) Jean Stewart (dau of William Stewart of Burray)
  A. John Sinclair of Murchil, 8th Earl of Caithness (d 1705)
  m. Janet Carmichael (of Hyndford)
  i. Alexander Sinclair, 9th Earl of Caithness (b c1665, d 09.12.1765)
  m. (15.02.1738) Margaret Primrose (dau of Archibald Primrose, 1st Earl of Rosebery)
  Alexander was succeeded by his kinsman William Sinclair.
  a. Dorothea Sinclair (b 04.04.1739, dsp)
  m. (05.06.1759) James Duff, 2nd Earl of Fife
  partner(s) unknown
  b. Peter Sinclair
(1) James Sinclair (dsp)
  c.+ 7 daughters
  Henderson's wording (p29) is unclear as to whether the 7 daughters ("of whom six married and had issue") were daughters of Alexander or of Peter.
  ii. John Sinclair of Murchil (dsp 05.06.1755, Solicitor-General, 'Lord Murkle')
m. Anne Mackenzie (d 21.10.1740, dau of George, 1st Earl of Cromarty)
  iii. Francis Sinclair of Forss (dsp 02.03.1762)
  m. Janet Morrison
  iv. Archibald Sinclair (dsp)
  v. Janet Sinclair
  m. (1714) David Sinclair of Southdun (South Dun)
  B. David Sinclair of Broynach (d c1714)
  m1. ?? Sinclair (dau of William Sinclair of Dun)
  i. James Sinclair (dsp c1754)
  ii. Elizabeth Sinclair
  m. James Whyte in Meikle Clyth, then Thurso
  a. Henrietta Whyte
  m. William Miller
  (1)+ issue - James, Isabella
  b. Jean Whyte
  m. Donald Oagg of Thurso
  (1)+ issue - James, Donald, Janet, Anne
  m2/p. (06.1700) Janet Ewing or Ewen (his servant)
  iii. son (d infant)
  iv. David Sinclair (b 02.1701, d c1760)
m. (21.10.1744) Margaret More or McKay
  a. James Sinclair in Reiss (dsp 11.01.1788)
  v. Donald Sinclair (d 1768) had issue
  C. Jean Sinclair
  D. Mary Sinclair
  m1. George Sinclair of Forss
  m2. William Sutherland of Geise
  E. Anne Sinclair (dsp)
  m. Alexander Sinclair of Stemser (son of Alexander of Latheron)
  F. Barbara Sinclair
  m. James Cunningham of Reaster
  G. Katherine Sinclair
  m. Walter Innes of Skaill
2. Francis Sinclair
  m. (mcrt 19.07.1621) Janet Sutherland (dau of Alexander Sutherland of Forss (Forse))
  A. James Sinclair (dsp)
3. Agnes Sinclair
  m. John McKay of Dirlot & Strathny/Strathy
partner unknown
The following comes from 'The Sinclairs of Assery' within 'Caithness Family History' (John Henderson, 1884, p31+).
4. John Sinclair of Assery
  m1. ??
  A. James Sinclair of Assery
  m1. Elizabeth Balfour
  i. George Sinclair of Assery
m1. ??
  a. John Sinclair of Assery (d by 1765, 2nd son)
m1. (1698) Elizabeth Innes (widow of Laurence Calder of Lynegar)
  (1) John Sinclair of Assery
  m. Katharine Sinclair (dau of Robert Sinclair of Geise) @1@ below
  (A) Robert Sinclair of Assery (dsp, Captain)
  m. Katharine Sinclair
  (B) Isabella Sinclair
  m. Robert Manson Sinclair of Bridgend
  (C) Jean Sinclair
m. Sir Benjamin Sinclair of Stemster
  (D)+ other issue - John, Charles, James, Katharine
  m2. Barbara Murray (dau of Patrick Murray of Pennyland)
  (2) Isabella Sinclair
  m. John Sinclair of Scotscalder @2@ below
  b.+ other issue - James (a 1700, illegitimate?), Patrick
  m2. (1672) Isabel Sinclair (dau of Patrick Sinclair of Ulbster)
  d.+ other issue - George, Francis
  Not clear which wife was mother of ...
  f. Elizabeth Sinclair
  m. Richard Sinclair of Thura
  m2. Margaret Munro (dau of David Munro, commissary of Caithness)
  Not clear which wife was mother of ...
  ii. John Sinclair in Ulgrimbeg
m. Bess Craigie
  iii. James Sinclair in Thurso (d 1713)
  a. Alexander Sinclair in Thurso
  m. Jean Sinclair (dau of James Sinclair of Wester Brims)
  b.+ other sons including Daniel (minister of Longformacus), William in Thurso
  iv. Katharine Sinclair ("eldest daughter")
  m. Alexander Gibson (Dean of Bower)
  B. Francis Sinclair (Lt. Colonel)
  m. (1659) Anna Sinclair (dau of Francis Sinclair of Stirkoke)
  i. Margaret Sinclair
m. (1680) David Henderson of Gersay (son of William of Nottingham by Janet Gordon (widow of James Sutherland of Forse))
  m2. Margaret Davidson ("traditionally supposed to have been of the Davidsons in Achingills or Buckies")
  C. John Sinclair of Lybster (in Latheron?)
  The following comes from 'The Sinclairs of Lybster' within 'Caithness Family History' (John Henderson, 1884, p36+).
  m. Beatrix Sinclair ("|supposed to have been of the Thura family")
  i. James Sinclair of Lybster
m. Katharine Sinclair (dau of Patrick Sinclair of Ulbster)
  a. John Sinclair of Lybster (dsp)
  b. Patrick Sinclair in Northfield (a 1702)
  (1) Alexander Sinclair of Lybster
m. Aemilia Sinclair (dau of Alexander Sinclair of Sixpenny) @3@ below
  (A) Patrick Sinclair of Lybster (Lt. General)
  m. Catharine Stewart
  (i) Temple Frederick Sinclair, last of Lybster (dsp before 1868, Captain)
  (ii) Jeffrey Sinclair (Surgeon General) had issue (2 daughters)
  (iii) Patrick Sinclair (d unm)
  (iv) Susan Sinclair
  m. David Laing in Thurso (surgeon)
  (B) Katharine Sinclair
  m. James Sinclair of Harpsdale
  (C)+ other issue (d unm) - Margaret, Aemilia
  c. William Sinclair of Hoy & Scotscalder
The following comes from 'The Sinclairs of Scotscalder' within 'Caithness Family History' (John Henderson, 1884, p39+).
  (1) Alexander Sinclair of Sixpenny
  Henderson (p39) reports that of Alexander "there is little further noteice, unless he is the same person as Alexander Sinclair of Sixpenny." The following assumes that he was. It comes from 'The Sinclairs of Achingale and Newton' within 'Caithness Family History' (John Henderson, 1884, p142+) which starts with Alexander, father of William 1st of Achingale & Newton, but states "Of what Alexander Sinclair was in somewhat uncertain. He has been supposed to have been of the Sinclairs of Dun, but it is more probable that he was of the Sinclairs of Assery and Lybster, and that he was a son of William Sinclair of Hoy, whose eldest son was named Alexander, and of whom there is, otherwise, no particular account."
  m. (1697) Beatrice Sinclair (dau of George Sinclair son of James of Lybster) @4@ below
  (A) William Sinclair of Achingale (d before 1768?, 2nd son)
m. (1738) Elizabeth Sinclair (dau of Sir James Sinclair of Dunbeath)
  (i) Alexander Sinclair of Achingale & Jamaica (dsp)
  (ii) Janet Sinclair of Achingale (d unm 1783)
  (ii) Margaret Sinclair of Achingale (dsp?)
m. (1798) Alexander Sinclair in Jamaica (son of Alexander in Houstry)
  (B) Margaret or Elizabeth Sinclair ("eldest daughter")
  m. (1722) Alexander Calder of Achingale
  (C) Aemilia Sinclair probably of this generation
  m. Alexander Sinclair of Lybster @3@ above
  (D)+ other issue including Francis, Sidney
  (2) John Sinclair of Scotscalder
  m. (1731) Isabella Sinclair (dau of John Sinclair of Assery by Barbara Murray) @2@ above
  (A) Robert Sinclair, last of Scotscalder (a 1812)
  (i) James Sinclair (Lt. Colonel)
  (ii) daughter
  m. _ Aitken
(iii) daughter
  m. _ Steel
  (B) Robert Sinclair
  (C) Isabella Sinclair (d 1829)
  m. Thomas Dunbar of Westfield (Captain, son of Alexander of Grangehill)
  (D) Barbara Sinclair
  m. William Sinclair of Rattar, 10th Earl of Caithness
  (E) Margaret or Catharine Sinclair
  m. James Sinclair of Holbornhead
  (F) Catharine or Margaret Sinclair
(3) Janet Sinclair
  m. (mcrt 29.04.1731) John McKay, 3rd of Strathy
  (4)+ other issue - Robert, Barbara
  d. Robert Sinclair of Geise (d 1742)
  The following comes from 'The Sinclairs of Geise' within 'Caithness Family History' (John Henderson, 1884, p43).
  m. Catharine Ross (d c1757, dau of William Ross of Kindeace, widow of George McKay of Bighouse)
  (1) Katharine Sinclair
  m. John Sinclair of Assery @1@ above
  (2) Jean Sinclair
  m. (1737) James Sinclair of Holbornhead & Forss
  (3) Barbara Sinclair
  m. William Sinclair in Thurso (physician)
  (4) Mary Sinclair
  m. Patrick Doull of Oldfield & Thurso
  (A) Alexander Doull (a 1780, d unm)
e. George Sinclair (a 1731)
  f. Beatrix Sinclair
  m. (1707) James Sutherland in Ausdale
  g. Elizabeth Sinclair
  m. John McKay in Kirtomy (son of John of Strathy & Dirlot)
  ii. George Sinclair
  a. Beatrix Sinclair
  m. Alexander Sinclair of Sixpennyland @4@ above
  iii. Elizabeth Sinclair
  m. Alexander Boynd in Thurso
  D. William Sinclair of Forsie, later of Ulgrimberg & Ulgrimore
  m. (1670) Jean Sinclair (dau of William Sinclair of Dun)
  i. Mary Sinclair
  m. (1705) Donald Gunn in Achalibster
ii. Elizabeth Sinclair
  E. George Sinclair (a 1660)
  F. Grizzel Sinclair
  m. John Doull of Thuster
  The following comes from 'Caithness Family History' (John Henderson, 1884, 'The Doulls of Thuster', p324).
  i. Patrick Doull of Winterfield
  ii. Mary Doull (Dowell)
  m. (11.08.1713) George (Mackay), 3rd Lord Reay
  iii. Margaret Doull
  m. William Sinclair of Thura (a 1680, Major)
  G. Isabell Sinclair
  m1. Arthur Forbes in Edinburgh
  m2. William Sinclair of Dun
  H. Janet Sinclair
  m. (1616) George Munro (Sheriff-Clerk of Caithness)

Main source(s): 'Caithness Family History' (John Henderson, 1884, 'The Sinclairs of Murkle', p24+), TSP ('Caithness, Sinclair') with input as reported above
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