Sir William Johnston1 
In 1700 He inherited the Gilford estates of his uncle, Sir John Magill, 1st Bt.2 He was appointed Knight in 1714.2 He held the office of High Sheriff of County Down in 1717.2 He held the office of High Sheriff of County Armagh in 1721.2
Child of Sir William Johnston and Nichola Anne Acheson
- Richard Johnston+1 b. 6 Mar 1710, d. 11 Feb 1758
- [S15] George Edward Cokayne, editor, The Complete Baronetage, 5 volumes (no date (c. 1900); reprint, Gloucester, U.K.: Alan Sutton Publishing, 1983), volume V, page 381. Hereinafter cited as The Complete Baronetage.
- [S15] George Edward Cokayne, The Complete Baronetage, volume IV, page 213.
- [S1322] David Arathoon, “re: Acheson Family and Campbell Family,” e-mail message to British and European Nobility Register, 8 April 2005 – 14 July 2006. Hereinafter cited as “re: Acheson Family and Campbell Family.”
Richard Johnston1 
He held the office of High Sheriff of County Armagh in 1733.1 He held the office of High Sheriff of County Down in 1735.1 He held the office of High Sheriff of County Monaghan in 1738.1 He lived at Gilford, County Down, IrelandG.1
Children of Richard Johnston and Catherine Gill
- Nicolina Johnston+2
- Catharine Johnston+3
- Robert Johnston2 b. c 1741
- Sir Richard Johnston, 1st Bt.+1 b. 1 Aug 1743, d. 22 Apr 1795
- [S15] George Edward Cokayne, editor, The Complete Baronetage, 5 volumes (no date (c. 1900); reprint, Gloucester, U.K.: Alan Sutton Publishing, 1983), volume V, page 381. Hereinafter cited as The Complete Baronetage.
- [S1322] David Arathoon, “re: Acheson Family and Campbell Family,” e-mail message to British and European Nobility Register, 8 April 2005 – 14 July 2006. Hereinafter cited as “re: Acheson Family and Campbell Family.”
- [S142] Bernard, Sir Burke, editor, Burke’s genealogical and heraldic history of the landed gentry of Ireland, 3rd ed. (London, U.K.: Burkes Peerage Ltd, 1912), page 353. Hereinafter cited as Landed Gentry of Ireland.
Catherine Gill1 
From 1737, her married name became Johnston.2
Children of Catherine Gill and Richard Johnston
- Nicolina Johnston+2
- Catharine Johnston+3
- Robert Johnston2 b. c 1741
- Sir Richard Johnston, 1st Bt.+1 b. 1 Aug 1743, d. 22 Apr 1795
- [S15] George Edward Cokayne, editor, The Complete Baronetage, 5 volumes (no date (c. 1900); reprint, Gloucester, U.K.: Alan Sutton Publishing, 1983), volume V, page 381. Hereinafter cited as The Complete Baronetage.
- [S1322] David Arathoon, “re: Acheson Family and Campbell Family,” e-mail message to British and European Nobility Register, 8 April 2005 – 14 July 2006. Hereinafter cited as “re: Acheson Family and Campbell Family.”
- [S142] Bernard, Sir Burke, editor, Burke’s genealogical and heraldic history of the landed gentry of Ireland, 3rd ed. (London, U.K.: Burkes Peerage Ltd, 1912), page 353. Hereinafter cited as Landed Gentry of Ireland.
Nicolina Johnston1
Her married name became Crozier.1
Children of Nicolina Johnston and Colin Crozier
- Anne Crozier1
- Major Acheson Johnston Crozier+1 b. 1760, d. Apr 1807
- [S1322] David Arathoon, “re: Acheson Family and Campbell Family,” e-mail message to British and European Nobility Register, 8 April 2005 – 14 July 2006. Hereinafter cited as “re: Acheson Family and Campbell Family.”
Colin Crozier1
Children of Colin Crozier and Nicolina Johnston
- Anne Crozier1
- Major Acheson Johnston Crozier+1 b. 1760, d. Apr 1807
- [S1322] David Arathoon, “re: Acheson Family and Campbell Family,” e-mail message to British and European Nobility Register, 8 April 2005 – 14 July 2006. Hereinafter cited as “re: Acheson Family and Campbell Family.”
William Crozier1
He gained the rank of Cornet.1
Children of William Crozier and Margaret Blair
- [S1322] David Arathoon, “re: Acheson Family and Campbell Family,” e-mail message to British and European Nobility Register, 8 April 2005 – 14 July 2006. Hereinafter cited as “re: Acheson Family and Campbell Family.”
Margaret Blair1 
From 1721, her married name became Crozier.1
Children of Margaret Blair and William Crozier
- [S1322] David Arathoon, “re: Acheson Family and Campbell Family,” e-mail message to British and European Nobility Register, 8 April 2005 – 14 July 2006. Hereinafter cited as “re: Acheson Family and Campbell Family.”
Major Acheson Johnston Crozier1 
He was educated at Ballintore School, County Kildare, IrelandG.1 He gained the rank of Captain in the Royal Marines.1 He fought in the action at the forts of La Petite Ansi d’Arlette, Martinique, where he was badly wounded.1
Children of Major Acheson Johnston Crozier and Jemima Wyse
- Nicholina Crozier1
- Jemima Crozier1
- Richard Crozier1
- William Crozier1
- Elizabeth Crozier1 d. a 1807
- Henry Crozier1 d. a 1807
- Acheson Crozier+1 b. 1786, d. 16 Feb 1871
- Sally Crozier+1 b. 1791, d. 1842
- Nicholina Elizabeth Crozier+1 b. 1793, d. 23 Sep 1852
- [S1322] David Arathoon, “re: Acheson Family and Campbell Family,” e-mail message to British and European Nobility Register, 8 April 2005 – 14 July 2006. Hereinafter cited as “re: Acheson Family and Campbell Family.”
Jemima Wyse1 
From 11 September 1783, her married name became Crozier.1
Children of Jemima Wyse and Major Acheson Johnston Crozier
- Nicholina Crozier1
- Jemima Crozier1
- Richard Crozier1
- William Crozier1
- Elizabeth Crozier1 d. a 1807
- Henry Crozier1 d. a 1807
- Acheson Crozier+1 b. 1786, d. 16 Feb 1871
- Sally Crozier+1 b. 1791, d. 1842
- Nicholina Elizabeth Crozier+1 b. 1793, d. 23 Sep 1852
- [S1322] David Arathoon, “re: Acheson Family and Campbell Family,” e-mail message to British and European Nobility Register, 8 April 2005 – 14 July 2006. Hereinafter cited as “re: Acheson Family and Campbell Family.”
Sir Richard Johnston, 1st Bt.1 
He held the office of High Sheriff of County Down in 1765.1 He held the office of High Sheriff of County Armagh in 1771.1 He was created 1st Baronet Johnston, of Gilford, co. Down [Ireland] on 27 July 1772, for his sevices against the insurgents.1 He held the office of Member of Parliament (M.P.) for Kilbeggan [Ireland] in 1776.1 He held the office of Member of Parliament (M.P.) for Blessington [Ireland] between 1783 and 1795.3
Children of Sir Richard Johnston, 1st Bt. and Anne Alexander
- Sir William Johnston, 2nd Bt.1 b. 18 Jul 1765, d. Feb 1841
- Marianne Johnston+1 b. 17 Jan 1769, d. 10 Jul 1851
- Catherine Johnston+1 b. 20 Aug 1777
- [S15] George Edward Cokayne, editor, The Complete Baronetage, 5 volumes (no date (c. 1900); reprint, Gloucester, U.K.: Alan Sutton Publishing, 1983), volume V, page 381. Hereinafter cited as The Complete Baronetage.
- [S1322] David Arathoon, “re: Acheson Family and Campbell Family,” e-mail message to British and European Nobility Register, 8 April 2005 – 14 July 2006. Hereinafter cited as “re: Acheson Family and Campbell Family.”
- [S15] George Edward Cokayne, The Complete Baronetage, volume IV, page 213.