Hi Chris

I've found 6 siblings

Name: William George Piper
Death Place: Fitzroy, Victoria
Registration Year: 1961
Registration number: 11658
Estimated Birth Year: abt 1901

Name: Gordon Raymond Piper
Death Place: Yarra, Victoria
Registration Year: 1964
Registration number: 2913
Estimated Birth Year: abt 1910

Name: Violet Ethel Green
Death Place: Rose, Victoria
Registration Year: 1970
Registration number: 24376
Estimated Birth Year: abt 1897

Name: Olive Pearleen Skeggs
Death Place: Preston, Victoria
Registration Year: 1976
Registration number: 317
Estimated Birth Year: abt 1909

Name: Stanley Livingst Piper
Death Place: Nort, Victoria
Registration Year: 1962
Registration number: 3241
Estimated Birth Year: abt 1900


Name: Norman Clarence Piper
Death Date: 28 Sep 1944
Death Place: Queensland
Father's Name: John Thomas Arthur
Mother's name: Florence Victoria Auld
Registration Year: 1944
Registration number: 004383
Page Number: 1867