I have one, gibbo. There are two more but only have initials.
NSW Birth 74/1887 JONES ISABEL - DAVID - ISABEL - SYDNEY
NSW Marriage 6934/1911 SANDS ARTHUR N - JONES ISABEL - ST LEONARDS
NSW Death 5938/1922 SANDS ISABEL - DAVID - ISABELLA - HURSTVILLE
The Sydney Morning Herald - Thursday 18 May 1922 p.8
SANDS.-May 16, at Waterfall, Isabel, wife of Arthur Norman Sands of Lindfield, aged 35 years.
SANDS.-May 16, at Waterfall, Isabel Sands, dearly loved daughter of Mr. and Mrs. David Jones of Enfield, and sister of E. H. and E. M. Jones, aged 35 years.
So she died before both parents. Still a huge number of deaths for a David JONES after 1922.
There is one tree with no info on her parents.