Timothy Gordon Clark1
He was educated at King William’s College, Castletown, Isle of ManG.1
Shirley Blake Clark1
Neil Blake Clark1 
He was educated at Shrewsbury School, Shrewsbury, Shropshire, EnglandG.1 He gained the rank of 2nd Lieutenant in the Irish Guards.1
Thomas Jackson Clark1 
He was educated at Shrewsbury School, Shrewsbury, Shropshire, EnglandG.1 He gained the rank of 2nd Lieutenant in the Royal Army Service Corps (MT.)1 He fought in the First World War.1 He lived at Upperlands, County Londonderry, Ireland.2 He fought in the Second World War.1 He gained the rank of Major.1 He was a director of William Clark & Sons Ltd.1 He held the office of High Sheriff of County Derry in 1951.1 He lived at Upperlands House, Upperlands, County Londonderry, IrelandG.1
Children of Thomas Jackson Clark and Mary Vera Eileen Campbell
- Thomas Roderick Jackson Clark2 b. 10 Sep 1924, d. 6 Dec 1944
- David Campbell Clark+2 b. 5 Aug 1926
- Desmond Moore Clark2 b. 9 Sep 1927
- Victoria Marguerite Clark2 b. 28 May 1945
Colonel Alan James Campbell1
He gained the rank of Colonel in the Indian Army.2 He was awarded the Distinguished Service Order (D.S.O.)1 He lived at Lisvarna, Ballycastle, County Antrim, Ireland.2 He lived at Ballycastle, County Antrim, IrelandG.1
Children of Colonel Alan James Campbell and Mary Grace Montgomery Grove
- Alan Robert Sinclair Campbell2 b. 21 Jul 1898, d. 2 Sep 1918
- Maj.-Gen. Sir Alexander Douglas Campbell+2 b. 20 Jun 1899, d. 3 Apr 1980
- Catherine Agnes Meta Campbell+2 b. 29 Jan 1901
- Mary Vera Eileen Campbell+2 b. 2 Feb 1903
- Ailsa Marjorie Campbell+2 b. 1 Mar 1905
Mary Vera Eileen Campbell1
From 4 December 1923, her married name became Clark.2 She lived at Kerrykiel, Upperlands, County Londonderry, Ireland.2
Children of Mary Vera Eileen Campbell and Thomas Jackson Clark
- Thomas Roderick Jackson Clark2 b. 10 Sep 1924, d. 6 Dec 1944
- David Campbell Clark+2 b. 5 Aug 1926
- Desmond Moore Clark2 b. 9 Sep 1927
- Victoria Marguerite Clark2 b. 28 May 1945
Thomas Roderick Jackson Clark1

He fought in the Second World War.1 He gained the rank of Sub-Lieutenant in the Royal Navy Volunteer Reserve.1
David Campbell Clark1
He was educated at Shrewsbury School, Shrewsbury, Shropshire, EnglandG.1 He was with Royal Army Service Corps between 1945 and 1952.1 He was a linen manufacturer with William Clark & Sons Ltd.1 He lived in 1976 at Woodbank Cottage, Garvagh, County Londonderry, IrelandG.1
Children of David Campbell Clark and Maureen Gillian Atkinson
- Roger David Clark2 b. 4 Nov 1957
- Diana Elizabeth Clark2 b. 17 Sep 1959
Robert Barrow Atkinson1
Child of Robert Barrow Atkinson
Maureen Gillian Atkinson1
From 5 April 1956, her married name became Clark.1
Children of Maureen Gillian Atkinson and David Campbell Clark
- Roger David Clark2 b. 4 Nov 1957
- Diana Elizabeth Clark2 b. 17 Sep 1959
