Christopher John Filmer-Sankey1 
Children of Christopher John Filmer-Sankey and Clare Elizma Seely
- Dominic Hugh Filmer-Sankey1 b. 26 Jun 1950
- Christopher John Timothy Filmer-Sankey1 b. 18 Mar 1958
Henry Pelham Grierson1 
Dominic Hugh Filmer-Sankey1
Christopher John Timothy Filmer-Sankey1
Cherry Angela Mary Seely1 
Her married name became O’Brien.
Children of Cherry Angela Mary Seely and Desmond Barnaby O’Brien
- Karen O’Brien+3 b. 19 Dec 1956
- Sarah Jane O’Brien+3 b. 12 Mar 1961
Desmond Barnaby O’Brien1 
He was educated at Eton College, Windsor, Berkshire, England.2
Children of Desmond Barnaby O’Brien and Cherry Angela Mary Seely
- Karen O’Brien+2 b. 19 Dec 1956
- Sarah Jane O’Brien+3 b. 12 Mar 1961
Captain Hon. Henry Barnaby O’Brien1 
He fought in the First World War, and was mentioned in despatches and was wounded.2 He gained the rank of Captain in 1916 in the Irish Guards.2 He held the office of Deputy Lieutenant (D.L.) of East Lothian.2 He was awarded the Military Cross (M.C.)1
Children of Captain Hon. Henry Barnaby O’Brien and Lady Helen Baillie-Hamilton
- Desmond Barnaby O’Brien+2 b. 27 Aug 1926, d. 1969
- Michael George O’Brien+2 b. 22 Dec 1928
Karen O’Brien1
From 1978, her married name became Cowan.1 She was Master Forester of Delamere Forest.1 She lived in 2003 at The Old Farmhouse, Weald, Bampton, Oxon OX18 2HWG.1
Children of Karen O’Brien and Paul William Cowan
- Lara Frances Cowan1 b. 1979
- Nina Elizabeth Cowan1 b. 1980
- Jonathan Cowan1 b. 1981
- Molly Cowan1 b. 1988
- [S37] BP2003 volume 2, page 2040. See link for full details for this source. Hereinafter cited as. [S37]
Sarah Jane O’Brien1
From 1986, her married name became Cellan-Jones.1
Children of Sarah Jane O’Brien and Simon Cellan-Jones
- Kate Cellan-Jones1 b. 1988
- Daniel Alexander Cellan-Jones1 b. 18 May 1996
Lady Helen Baillie-Hamilton1 
On 26 January 1918 she was granted the rank of an earl’s daughter.1 Her married name became O’Brien. She was appointed Officer, Order of the British Empire (O.B.E.)2
Children of Lady Helen Baillie-Hamilton and Captain Hon. Henry Barnaby O’Brien
- Desmond Barnaby O’Brien+2 b. 27 Aug 1926, d. 1969
- Michael George O’Brien+2 b. 22 Dec 1928
