Hazel Colleen Elizabeth May1 
From 9 August 1952, her married name became Cavendish.
Children of Hazel Colleen Elizabeth May and Greville Adrian Cavendish
- Rupert Edward Greville Cavendish2 b. 4 Sep 1955
- Piers Antony Charles Cavendish+2 b. 29 Dec 1956
- Kiloran Arabella Cavendish2 b. 8 May 1959
Leslie George Webb1
Child of Leslie George Webb
- Gillian Webb2 d. 10 Feb 2018
Gillian Webb1 
From 1974, her married name became Cavendish.
Rupert Edward Greville Cavendish1
Piers Antony Charles Cavendish1
He lived in 2003 at 58 St. John’s Hill Grove, London, EnglandG.1
Children of Piers Antony Charles Cavendish and Rose Vivien Louise Olivier
- Georgia Claire Cavendish2 b. 1989
- Patrick Alexander Cavendish2 b. 1990
Gerard Dacres Olivier1
Gerard Dacres Olivier also went by the nick-name of Dickie.1
Child of Gerard Dacres Olivier
Rose Vivien Louise Olivier1
Rose Vivien Louise Olivier usually went by her middle name of Louise.1 From 1986, her married name became Cavendish.
Children of Rose Vivien Louise Olivier and Piers Antony Charles Cavendish
- Georgia Claire Cavendish2 b. 1989
- Patrick Alexander Cavendish2 b. 1990
Patrick Alexander Cavendish1
Georgia Claire Cavendish1
Kiloran Arabella Cavendish1
