Hi,
Re, your comment.... "The info we have comes from what she passed on to her children - parents James Harris and Mary Ann Cotton, who died when Catherine and her sister Margaret were young. Margaret is 7 or 8 years younger. We don't know of any other siblings either and none were ever mentioned that I know of. This info is also on the sisters' death certificates"
What info is on the sister, Margaret's, April 1946, death certificate?
23022/1946 TRANQUILLE MARGARET 8O YRS LONG JETTY WYONG
Name: Margaret Tranquille
Death Age: 80
Birth Date: abt 1866
Death Date: 26 Apr 1946
Cemetery: Wamberal
Section: Roman Catholic
Cemetery Location: Wamberal, New South Wales
Mary