Susanna Newton1 
Her married name became Guinness.
Children of Susanna Newton and William Lunell Guinness
- Reverend William Newton Guinness+2 b. 1811, d. 1894
- Anne Rebecca Guinness2 b. 1819, d. 1881
Gilbert Falkingham Clayton1
He held the office of Page of Honour to HM Queen Elizabeth the Queen Mother between 1973 and 1974.1
- [S37] BP2003 volume 2, page 1639. See link for full details for this source. Hereinafter cited as. [S37]
Rose Cecilia Clayton1
She was educated at Heathfield School, Ascot, Berkshire, EnglandG.1 She was educated at King James College, Henley-on-Thames, Oxfordshire, EnglandG.1 From 9 July 1993, her married name became Stancer.1 She was a polar explorer.1
- [S37] BP2003 volume 2, page 1639. See link for full details for this source. Hereinafter cited as. [S37]
William Wordie Stancer1
- [S37] BP2003 volume 2, page 1639. See link for full details for this source. Hereinafter cited as. [S37]
Lt.-Col. Henry William Newton Guinness1 
He was educated at Newton Abbot School, Newton Abbot, Devon, EnglandG.1 He was commissioned in 1873, in the service of the 18th Regiment.1 He fought in the Afghan War in 1880.1 He gained the rank of Captain in 1881 in the Royal Irish Regiment.1 He fought in the Nile Expedition between 1884 and 1885, where he was mentioned in despatches.1 He gained the rank of Brevet Major in 1885.1 He gained the rank of Lieutenant-Colonel in 1889.1 He was appointed Companion, Order of the Bath (C.B.) in 1900.1 He fought in the Boer War between 1900 and 1901, where he was mentioned in despatches.1 He had two other sons.1
Child of Lt.-Col. Henry William Newton Guinness and Frances Helen West
Robert Mallet1
Child of Robert Mallet
- [S31] Bernard, Sir Burke, editor, Burke’s genealogical and heraldic history of the landed gentry of Ireland, 4th ed. (London, U.K.: Burkes Peerage Ltd, 1958), page 751. Hereinafter cited as Landed Gentry of Ireland.
Frances Helen West1
From 8 April 1893, her married name became Guinness.
Child of Frances Helen West and Lt.-Col. Henry William Newton Guinness
Ernest Whitmore Guinness1 
Children of Ernest Whitmore Guinness and Annie Macnaught
- Captain Eustace John Guinness+2 b. 1897
- Colonel Dennys Robert Guinness+2 b. 1903
Annie Macnaught1
Her married name became Guinness.
Children of Annie Macnaught and Ernest Whitmore Guinness
- Captain Eustace John Guinness+2 b. 1897
- Colonel Dennys Robert Guinness+2 b. 1903
Captain Eustace John Guinness1 
He was awarded the Distinguished Service Cross (D.S.C.)1 He gained the rank of Captain in the Royal Navy.1
Child of Captain Eustace John Guinness and Angela Beryl Hoare
- Timothy Whitmore Newton Guinness+2 b. 20 Jun 1947