Henry Jackson Clark1 
He was educated at Grace Hill AcademyG.1 He was educated at Coleraine Academic Institute, Coleraine, County Londonderry, IrelandG.1 He was chairman of William Clark & Sons Ltd.1 He gained the rank of Company Commander in the Ulster Volunteer Force.1 He held the office of Justice of the Peace (J.P.) for County Derry in 1912.1 He was District Commandant, Ulster Special Constabulary between 1921 and 1936.1 He was appointed Member, Order of the British Empire (M.B.E.) in 1923.1 He held the office of Deputy Lieutenant (D.L.) of County Derry in 1927.1 He held the office of High Sheriff for County Derry in 1928.1 He lived at Ardtara, Upperlands, County Londonderry, IrelandG.1
Children of Henry Jackson Clark and Alice Warren Moore
- Mamie Moore Clark2
- William Moore Wallis Clark+2 b. 10 Jan 1897, d. 1 May 1971
- Thomas Jackson Clark+2 b. 20 May 1898, d. 16 May 1963
- Norah Primrose Clark+2 b. 19 Apr 1900
- Henry Francis Clark+2 b. 18 Feb 1904, d. 15 Oct 1977
- Charles Brian Clark2 b. 6 Nov 1907, d. 24 Aug 1989
Sybil Emily Stuart1
From 29 April 1925, her married name became Clark.1
Children of Sybil Emily Stuart and Henry Francis Clark
- Henry Wallace Stuart Clark+1 b. 20 Nov 1926, d. 8 May 2011
- Henry Maitland Clark+1 b. 11 Apr 1929
- Sybil Gillian Clark1 b. 23 Oct 1936
- [S47] BIFR1976 page 234. See link for full details for this source. Hereinafter cited as. [S47]
Alice Warren Moore1 
From 26 February 1896, her married name became Clark.1
Children of Alice Warren Moore and Henry Jackson Clark
- Mamie Moore Clark2
- William Moore Wallis Clark+2 b. 10 Jan 1897, d. 1 May 1971
- Thomas Jackson Clark+2 b. 20 May 1898, d. 16 May 1963
- Norah Primrose Clark+2 b. 19 Apr 1900
- Henry Francis Clark+2 b. 18 Feb 1904, d. 15 Oct 1977
- Charles Brian Clark2 b. 6 Nov 1907, d. 24 Aug 1989
William Moore Wallis Clark1 
He was educated at Shrewsbury School, Shrewsbury, Shropshire, EnglandG.1 He held the office of Justice of the Peace (J.P.) for County Derry in 1936.1 He held the office of High Sheriff of County Derry in 1938.1 He held the office of Member of the Senate [Northern Ireland] between 1946 and 1961.1 He held the office of Leader of the Senate [Northern Ireland] between 1948 and 1961.1 He held the office of Deputy Lieutenant (D.L.) of County Derry in 1952.1 He was a director of William Clark & Sons Ltd.1 He lived at Gorteade House, Upperlands, County Londonderry, IrelandG.1
Children of William Moore Wallis Clark and Zelie Marguerite Lopdell
- William John Moore Clark+2 b. 18 Nov 1924
- Neil Blake Clark2 b. 6 Oct 1926, d. 17 Jan 1946
Lt.-Col. John Robert Lopdell1
Children of Lt.-Col. John Robert Lopdell
- Zelie Marguerite Lopdell+2 d. 15 Jul 1970
- Dorothy Noelle Lopdell+2
Zelie Marguerite Lopdell1 
From 25 August 1920, her married name became Clark.
Children of Zelie Marguerite Lopdell and William Moore Wallis Clark
- William John Moore Clark+2 b. 18 Nov 1924
- Neil Blake Clark2 b. 6 Oct 1926, d. 17 Jan 1946
William John Moore Clark1
He was educated at Shrewsbury School, Shrewsbury, Shropshire, EnglandG.1 He gained the rank of Captain in the Irish Guards.1 He gained the rank of Second World War.1 He was a director of Ulster Bank Ltd.1 He was a director of Everbond Interlinings Ltd.1 He was a direxctor of A/S Allen Johnson at DenmarkG.1 He was a director of William Clark & Sons Ltd.1 He graduated from Harvard Business School, Harvard University, Cambridge, Massachusetts, U.S.A.G, in 1969 with a Advanced Management Programme (A.M.D.)1 He held the office of High Sheriff of County Derry in 1973.1 He lived in 1976 at Gorteade House, Upperlands, County Londonderry, IrelandG.1 He lived in 1976 at Ardtara, Upperlands, County Londonderry, IrelandG.1
Children of William John Moore Clark and Deirdre Mary Patrick Webb
- William Stephen Patrick Clark2 b. 16 Dec 1952
- Shirley Blake Clark2 b. 3 Dec 1955
- Timothy Gordon Clark2 b. 15 May 1960
Patrick Brooke Webb1
Child of Patrick Brooke Webb
Deirdre Mary Patrick Webb1
From 1 June 1950, her married name became Clark.
Children of Deirdre Mary Patrick Webb and William John Moore Clark
- William Stephen Patrick Clark2 b. 16 Dec 1952
- Shirley Blake Clark2 b. 3 Dec 1955
- Timothy Gordon Clark2 b. 15 May 1960
William Stephen Patrick Clark1
William Stephen Patrick Clark usually went by his middle name of Stephen.3 He was educated at Shrewsbury School, Shrewsbury, Shropshire, EnglandG.1 He lived in 1993 at Gorteade House, Upperlands, County Londonderry, IrelandG.3 He held the office of High Sheriff of County Derry in 1994.3 He was a director of William Clark and Sons Ltd, BWC Textiles Ltd and BWF (NI) Ltd in 1999.3
- [S47] BIFR1976 page 234. See link for full details for this source. Hereinafter cited as. [S47]
- [S47] BIFR1976. [S47]
- [S4444] Stephen Clark, “re: Clark Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 24 January 2010. Hereinafter cited as “re: Clark Family.”
