Walter Maurice Costello1
Child of Walter Maurice Costello
Hugh Costello1
Children of Hugh Costello and Deborah Elspeth Dudgeon
- Nancy Róisón Costello2 b. 23 Jul 2001
- Eva Penelope Costello2 b. 25 Jul 2003
Nancy Róisón Costello1
Eva Penelope Costello1
Hon. John Lancelot Bailey1 
He gained the rank of Captain in the South Wales Borderers.1 He fought in the First World War.1
Children of Hon. John Lancelot Bailey and Vivien Dora Carey
- Jacqueline Bailey2 b. 18 Nov 1905, d. 1975
- Joseph Ferdinand Carey Bailey+2 b. 16 Apr 1907, d. 1984
- Marjorie Vivienne Bailey2 b. 16 May 1910
Ferdinand Gaussen Carey1
Child of Ferdinand Gaussen Carey
- Vivien Dora Carey+2 d. 25 Feb 1938
Vivien Dora Carey1 
From 6 August 1903, her married name became Bailey.
Children of Vivien Dora Carey and Hon. John Lancelot Bailey
- Jacqueline Bailey2 b. 18 Nov 1905, d. 1975
- Joseph Ferdinand Carey Bailey+2 b. 16 Apr 1907, d. 1984
- Marjorie Vivienne Bailey2 b. 16 May 1910
Joseph Ferdinand Carey Bailey1 
Children of Joseph Ferdinand Carey Bailey and Alice Cecilia Anne Magniac
- Lancelot Oswald Bailey+2 b. 7 Jul 1936
- Vernon Joseph Russell Bailey+2 b. 9 Jun 1937
- Cynthia Mary Bailey+2 b. 13 Feb 1940
Children of Joseph Ferdinand Carey Bailey and Evelyn Marie Blauveldt
- Josephine Blauveldt Bailey+2 b. 18 May 1949
- Deborah Evelyn Blauveldt Bailey+2 b. 7 Oct 1950
- Herbert van Courtland Bailey+2 b. 18 Apr 1952
Alice Cecilia Anne Magniac1
From 12 October 1935, her married name became Bailey.
Children of Alice Cecilia Anne Magniac and Joseph Ferdinand Carey Bailey
- Lancelot Oswald Bailey+2 b. 7 Jul 1936
- Vernon Joseph Russell Bailey+2 b. 9 Jun 1937
- Cynthia Mary Bailey+2 b. 13 Feb 1940
