Nevinson Mark de Courcy, 29th Lord Kingsale1
He lived in 2003 at 22 Armadale Road, Remuera, Auckland, New ZealandG.1 He succeeded as the 29th Lord Kingsale [I., c. 1340] on 15 September 2005.3
- [S37] BP2003 volume 2, page 2177. See link for full details for this source. Hereinafter cited as. [S37]
- [S37] BP2003. [S37]
- [S3849] Dione Daffin, “re: de Courcy Family,” family provided evidence then verified by subsequent research and verification by BENR (101053), 18 July 2009. Hereinafter cited as “re: de Courcy Family.”
Katherine Grace de Courcy1
From 1979, her married name became Smith.
Children of Katherine Grace de Courcy and Gregory Lawrence Smith
- Henrietta Lydia Smith2 b. 1984
- Robert Russell Maunganui Smith2 b. 1987
Gregory Lawrence Smith1
Children of Gregory Lawrence Smith and Katherine Grace de Courcy
- Henrietta Lydia Smith2 b. 1984
- Robert Russell Maunganui Smith2 b. 1987
Robert Russell Maunganui Smith1
Henrietta Lydia Smith1
William Blennerhassett de Courcy1 
He gained the rank of Midshipman in the Royal Navy.1
John Sinclair Bremer de Courcy1 
Children of John Sinclair Bremer de Courcy and Emily Sophia Bower
- Emily Mary Eliza de Courcy2 b. 6 Jun 1856, d. 24 Feb 1934
- Beatrice Katherine de Courcy2 b. 29 Jun 1857, d. 22 Jan 1882
- Rupert John Nevinson de Courcy+2 b. 31 May 1859, d. 28 Nov 1952
- Michael George Edmund de Courcy2 b. 5 Dec 1860, d. 5 Dec 1911
- Bertha Maria Letitia de Courcy2 b. 5 Jun 1862, d. 25 Apr 1960
- William Edward de Courcy2 b. 7 Sep 1865, d. 31 Mar 1866
- Ethel Beata de Courcy2 b. 31 Jan 1867, d. 7 Feb 1956
George Edmund Bower1
Child of George Edmund Bower
- Emily Sophia Bower+2 d. 19 May 1911
Emily Sophia Bower1 
From 7 June 1855, her married name became de Courcy.1
Children of Emily Sophia Bower and John Sinclair Bremer de Courcy
- Emily Mary Eliza de Courcy2 b. 6 Jun 1856, d. 24 Feb 1934
- Beatrice Katherine de Courcy2 b. 29 Jun 1857, d. 22 Jan 1882
- Rupert John Nevinson de Courcy+2 b. 31 May 1859, d. 28 Nov 1952
- Michael George Edmund de Courcy2 b. 5 Dec 1860, d. 5 Dec 1911
- Bertha Maria Letitia de Courcy2 b. 5 Jun 1862, d. 25 Apr 1960
- William Edward de Courcy2 b. 7 Sep 1865, d. 31 Mar 1866
- Ethel Beata de Courcy2 b. 31 Jan 1867, d. 7 Feb 1956
Rupert John Nevinson de Courcy1 
Children of Rupert John Nevinson de Courcy and Agnes Gordon Brassey
- Nevinson Egerton de Courcy+2 b. 28 Jul 1885, d. 1979
- Elaine Bertha de Courcy+2 b. 26 Jan 1895