William Stevenson1
Child of William Stevenson
- Elizabeth Stevenson+2 d. 7 Jul 1813
Elizabeth Stevenson1 
From 1757, her married name became Clark.
Children of Elizabeth Stevenson and Alexander Clark
- William Clark2 d. 1827
- Margaret Clark2
- John Clark3
- Elizabeth Clark3
- Jackson Clark+2 b. 1760, d. 16 May 1788
- Alexander Clark+2 b. 1767, d. 1 Mar 1842
- [S47] BIFR1976 page 237. See link for full details for this source. Hereinafter cited as. [S47]
- [S47] BIFR1976. [S47]
- [S5354] George Speer, “re: Clark Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 8 May 2011. Hereinafter cited as “re: Clark Family.”
Alexander Clark1 
He lived at Mahjera, County Londonderry, IrelandG.1
Children of Alexander Clark and Margaret Johnston
- Rebecca Lucinda Clark2
- Elizabeth Clark2 d. 22 Dec 1835
- Alexander Jackson Clark2 b. 12 Jun 1807, d. 7 Jul 1834
- James Johnston Clark+2 b. 9 Jan 1809, d. 1891
Jackson Clark1 
Child of Jackson Clark and Jane Patterson
- Alexander Clark+2 b. 1785, d. 16 May 1871
Margaret Clark1
From 1794, her married name became Stevenson.
William Stevenson1
He lived at Ashpark, Knockan, County Londonderry, IrelandG.1
- [S47] BIFR1976 page 237. See link for full details for this source. Hereinafter cited as. [S47]
James Johnston1
Child of James Johnston
- Margaret Johnston+2 d. 31 Oct 1838
Margaret Johnston1 
From 6 May 1805, her married name became Clark.
Children of Margaret Johnston and Alexander Clark
- Rebecca Lucinda Clark2
- Elizabeth Clark2 d. 22 Dec 1835
- Alexander Jackson Clark2 b. 12 Jun 1807, d. 7 Jul 1834
- James Johnston Clark+2 b. 9 Jan 1809, d. 1891
Alexander Jackson Clark1 
He held the office of Justice of the Peace (J.P.) for County Derry.1
