I know that you are looking to connect with living relatives, but the more information put up here the more likely anyone looking for the same family connections, when doing a Google search, will find what they are looking for.
13402/1959 PENGILLY Archibald Bertram parents JOHN and MARY at CAMPSIE
5417/1982 PENGILLY Mary Theresa parents JOHN and AGNES MARY
Another maybe:
26646/1983 PENGILLY Eileen Mary parents JOHN and MARY
PENGILLY Eileen Mary Death notice 17-11-1983 Death 89 late of Wentworth Falls, formerly of Springwood Sydney Morning Herald 19-111983
Not available on Google SMH.
It’s interesting that no children were mentioned in the death notices for Archibald and Magdalene.
29055/1950 MICKLEWRIGHT Michael James to PENGILLY Margaret Almina KATOOMBA
28165/1960 MICKLEWRIGHT Margaret Almina parents THOMAS GILBERT F and JANE KATOOMBA
Margaret at Katoomba Cemetery:
Surname: MICKLEWRIGHT
GivenName: Margaret Almina
Cemetery: Katoomba
Denomination: Roman Catholic
Age: 34
Section: KRC2
Row: 5
PlotNumber: 4
DateDeath: 05-Sep-1960
PlotType: Monumental
Could these be the folks of Michael?
18413/1921 MICKLEWRIGHT John T to SMITH Lilian PARRAMATTA
MICKLEWRIGHT Lillian Death notice 6 Nov 1976 Death 81 late of Yagoona, formerly of Springwood Sydney Morning Herald 8 Nov 1976
1st page:
https://news.google.com/newspapers?nid=lL5f5cZgq8MC&dat=19761109&printsec=frontpage&hl=en32680/1969 MICKLEWRIGHT John Talbot parents PEMBERTON TALBOT and MARGARET PENRITH
MICKLEWRIGHT John Talbot Death notice 28 Aug 1969 Death late of Springwood Sydney Morning Herald 29 Aug 1969
Not available on Google SMH.
Jamjar