Hi Scallywaggles,
Re... "I have Catherine's marriage certificate and both she and Margaret's death certificates."
Since this post, have you purchased Margaret HARRIS's marriage certificate to Edward TRANQUILL?
Name: Margaret Harris
Spouse: Edward Tranouill
Marriage: 1890 - Sydney, New South Wales
If so, who were the witnesses?
Who were her parents?
What was her place of birth and age?
Mary