Marion Jane Forlonge1,2 
From 1862, her married name became Guinness.
Children of Marion Jane Forlonge and Arthur Cecil Cope Jenkinson Guinness
- Katherine Guinness3
- Mabel Constance Guinness+3 b. 21 Apr 1864, d. 29 Aug 1940
- [S37] BP2003 volume 2, page 1698. See link for full details for this source. Hereinafter cited as. [S37]
- [S254] Australian Dictionary of Biography – Online Edition, online http://www.adb.online.anu.edu.au. Hereinafter cited as Australian Dictionary of Biography.
- [S37] BP2003. [S37]
Frederica Frances Maria Anna Smyth-Blood1
She emigrated with his parents to Adelaide, South Australia, AustraliaG, arriving on 1847 on board the Success.2,1
Elizabeth Charlotte Catherine Blood-Smyth1 
Katherine Guinness1
From 1882, her married name became Brennand.
John Brennand1
Nr Thirsk.2 He was Yorkshire.2 He lived Asenby Lodge.2 He was Lord of the Manor of Baldersby, Yorkshire.1
Neptune Blood-Smyth1 
Agnes Mary Gilchrist1 
From 3 August 1886, her married name became Guinness. From 1905, her married name became Brodie.1
Children of Agnes Mary Gilchrist and Arthur Cecil Cope Jenkinson Guinness
- John Cecil Cope Jenkinson Guinness+3 b. 1 Jun 1890, d. 14 Oct 1970
- Agnes Mildred Guinness3 b. 4 May 1893, d. 2 Jan 1975
Mary Bagot Blood-Smyth1 
Frances Jane Blood-Smyth1 
John Cecil Cope Jenkinson Guinness1 
He fought in the First World War.1 He gained the rank of officer in the Coldstream Guards.1 He was with Bleacher’s Association.1
Children of John Cecil Cope Jenkinson Guinness and Betty Davies
- Cecil Edward Guinness+3 b. 1924
- Robin Arthur Guinness+3 b. 26 Sep 1925, d. 17 Oct 2019
- Iveagh Perry Guinness+3 b. 1927
- Mary Carol Guinness+3 b. 1928, d. 25 Oct 2007
- Richard Iveagh Guinness3 b. 19 Dec 1938
