The Sydney Morning Herald - Wednesday 17 November 1999 p.22
DEATHS
RICKARD, Graham Astridge.-Ex RAAF, November 11, 1999, husband of Jill, loving father of Ian, Ross and Nicolle, loved brother of Constance, Ian (deceased) and Isabel Stringer.
The Sydney Morning Herald - Wednesday 17 August 1966 p.52
DEATHS
RICKARD, Lucy Evelyn.-August 14, 1966, at hospital, of Palmerston Road Hornsby, loved wife of the late Norman Heath Rickard, loved mother of Constance (Mrs. Outridge), Ian, Graham and Isabel (Mrs. Stringer)...
STRINGER Isabel Doris Death notice 06SEP2002 Death 81 late of Orange SMH 07SEP2002
So far I can't find the STRINGER + RICKARD marriage.
Don't even know if that is the right death or if her middle name is Doris.
There are about 5 possibles in Electoral roll and this one does not appear before 1963:
Isabel Doris Stringer 1963 New South Wales Riverina
Isabel Doris Stringer 1963 New South Wales Warringah
Alan Richard Stringer 1963 New South Wales Warringah
Albert George Stringer 1963 New South Wales Warringah
Anthony John Stringer 1963 New South Wales Warringah
Kenneth Mcintyre Stringer 1963 New South Wales Warringah
Reginald Alfred Stringer 1963 New South Wales Warringah
So which one his it?
Isabel Doris Stringer 1968 New South Wales Lawson
Albert George Stringer 1968 New South Wales Lawson