May I ask the source of your information?
Buried at Denmark Cemetery. I cannot find a death reg for a Dorothy Gertrude ANDERSON in WA in 1968 only an Elizabeth Prudence. The first two burials are at the same location.
ANDERSON Harry Arthur 82 years, Denmark Died 9 Jun 1959 Interred 11 Jun 1859 Location General Burial Ground Site 279
ANDERSON Dorothy Gertrude 82 years, Denmark Died 7 Jan 1968 Interred 9 Jan 1968
Location General Burial Ground Site 279
ANDERSON Dorothy 82 years, Albany Died 20 Jun 1991 Interred 26 Jun 1998
General Burial Ground Site 667
Headstones/plaques at the Denmark Cemetery, WA
ANDERSON , Dorothy 20 Jun 1991 aged 82
ANDERSON , Dorothy Gertrude. 7 Jan 1968 aged 82 .
ANDERSON , Harry Arthur 9 Jun 1959 aged 82
Interred at Albany - Allambie Park Cemetery
ANDERSON Alec Emile 77 years 18 Jan 1983 Location CW561
No Alec with the family in 1911.
Australian Electoral Rolls
1954, 1958 Forrest/Albany
ANDERSON Dorothy Prudence Harewood Road, Denmark Student
ANDERSON Elizabeth Prudence Harewood Road, Denmark HD
ANDERSON Harry Arthur Harewood Road, Denmark No occupation listed.
1963
ANDERSON Dorothy Prudence Harewood Road, Denmark Student
ANDERSON Elizabeth Prudence Harewood Road, Denmark HD
1968
ANDERSON Dorothy Prudence Harewood Road, Denmark Student
1972, 1977, 1980
ANDERSON Alec Emile 36 Marine Parade, Albany No occupation listed
ANDERSON Dorothy Prudence 36 Marine Parade Albany HD
Cando