Catherine Sibylla Holland1 
Her married name became Mostyn.
Children of Catherine Sibylla Holland and Major George Anthony Mostyn
- Juliet Veronica Mostyn+2 b. 9 Jul 1925
- Richard Anthony Mostyn+2 b. 22 Jun 1927
- Christopher Harold Mostyn2 b. 2 Oct 1930, d. 25 Jul 1958
- Valentine Francis Damian Mostyn+2 b. 23 Feb 1943
- Joan Elizabeth Verena Mostyn+2 b. 3 Jun 1948
Bernard Henry Holland1 
He graduated from Trinity College, Cambridge University, Cambridge, Cambridgeshire, England, with a Master of Arts (M.A.)1 He was admitted to Inner Temple in 1882 entitled to practise as a barrister.1 He held the office of Secretary to the Duke of Devonshire between 1892 and 1894.1 He was Private Secretary to the Secretary of State, Colonies between 1903 and 1908.1 He held the office of Alderman of London County Council between 1910 and 1920.1 He was appointed Companion, Order of the Bath (C.B.)1 He lived at Harbledown Lodge, Canterbury, Kent, EnglandG.1
Children of Bernard Henry Holland and Florence Helen Duckworth
- Christopher Bernard Holland2 b. 20 Jul 1898, d. c 1899
- Mary Verena Violet Holland2 b. 26 Mar 1901
- Catherine Sibylla Holland+2 b. 17 Mar 1903, d. 1983
- John Francis Holland2 b. 9 Aug 1906, d. c 1907
- Alfred Bernard Holland2 b. 17 Jun 1908, d. Apr 1953
Florence Helen Duckworth1 
Her married name became Holland.
Children of Florence Helen Duckworth and Bernard Henry Holland
- Christopher Bernard Holland2 b. 20 Jul 1898, d. c 1899
- Mary Verena Violet Holland2 b. 26 Mar 1901
- Catherine Sibylla Holland+2 b. 17 Mar 1903, d. 1983
- John Francis Holland2 b. 9 Aug 1906, d. c 1907
- Alfred Bernard Holland2 b. 17 Jun 1908, d. Apr 1953
William Lambert
Child of William Lambert
Richard Anthony Mostyn
He was educated at Royal Naval College, Darmouth, Devon, England.1 He gained the rank of Lieutenant in the Royal Navy.1 FIAC S Africa, LIMTA S Africa.1 He lived in 2003 at 3 Flamingo Drive, Greenside, Mutare, Zimbabwe.1
Children of Richard Anthony Mostyn and Mary Michie
- Nicola Mary Mostyn+1 b. 23 Dec 1961
- Clare Sibylla Mostyn+1 b. 13 Jun 1963
- Anthony Damian Mostyn+1 b. 12 Nov 1964
- Christopher Francis Mostyn+1 b. 1 May 1966
- [S37] BP2003 volume 3, page 3982. See link for full details for this source. Hereinafter cited as. [S37]
Mary Michie
From 14 February 1961, her married name became Mostyn.
Children of Mary Michie and Richard Anthony Mostyn
- Nicola Mary Mostyn+1 b. 23 Dec 1961
- Clare Sibylla Mostyn+1 b. 13 Jun 1963
- Anthony Damian Mostyn+1 b. 12 Nov 1964
- Christopher Francis Mostyn+1 b. 1 May 1966
- [S37] BP2003 volume 3, page 3982. See link for full details for this source. Hereinafter cited as. [S37]
James Joseph Michie
Child of James Joseph Michie
- [S37] BP2003 volume 3, page 3982. See link for full details for this source. Hereinafter cited as. [S37]
Nicola Mary Mostyn
From 1981, her married name became Taylor.
Children of Nicola Mary Mostyn and Grant Taylor
- Alana Clare Taylor2 b. 1986
- Grant Alexander Taylor2 b. 1994
Christopher Harold Mostyn 
He was educated at Lycée d’Antibes.1 He was educated at H.M.S. Worcester, EnglandG.1 He gained the rank of Lieutenant in the Royal navy.1
Valentine Francis Damian Mostyn
He was educated at Lycée d’Antibes.1 He graduated from Oxford School of Architecture, Oxford, Oxfordshire, England, with a Diploma of Architecture (Dip.Arch.)1 He was educated at St. Joseph’s College, Ipswich, Suffolk, England.1 He was registered as a Associate, Royal institute of British Architects (A.R.I.B.A.)1 He lived in 2003 at Overdee, Erbistock, Wrexham, Denbighshire, Wales.1
Children of Valentine Francis Damian Mostyn and Gay Field
- Aimie Clare Mostyn2 b. 1974
- Sarah Jane Mostyn2 b. 1977