Hi Mary,
Re: Catherine's father James or John Harris. I have spoken to my mother who thinks she has a document somewhere which states her father was James, but she is not sure. Looking at BDM records and your info, John looks more likely.
Margaret Tranquille of Long Jetty who died in 1946, is Catherine's sister
I have come across a birth record for Teresa M Harris born 1862 to John and Mary Harris and wondered if this may be Margaret.
Also Mary Harris born 1859 to John and Mary Harris. BDM records show this Mary later married James MacKenna in district of Woonona, which is very near Wollongong.
It is very interesting as family have never heard of this third child, but under the circumstances it would be quite easy for the sisters to lose contact with each other. Catherine and Margaret had some contact. Margaret's son Paul and Catherine's daughter Minnie, who lived in Sydney, knew each other very well.
There are still some elderly cousins of mine who remember John and Catherine, so I have questions and some answers for them.
Yours and Kellie's information has been fantastic and very much appreciated.
Scallywaggles