Thank your very much for your research. I did see that on Trove and also wondered about that article. also the court case for Alexander to pay support money. It all fits in the time frame. My query re Alexander Clark was just a matter of curiosity Being a shipwright/seaman he may have moved out of NSW I have lots of info on them.
I have another child born to Margaret called Mary Jane Yates born in 1862 bapt d1863 she reg. this child as Yates but John Yates her first husband was deceased then he died in 1860 Her family Kirkmans were well know in the "Rocks" I think she may have been a troubled person. My Grandmother child from her Hadden marriage told her daughter that she was sent to her stepbrothers the Yates family and was treated very very badly her 2 sister died in infancy so she was alone. Thanks again Jean