Hi again John,
I am wondering what proof you have that artist John Riley HOOD (of London, South Australia and Sydney) was a brother of your George snr? - just to ensure that further blind alleys are avoided

. I note that George snr was supposed to have been born in Lancashire whereas Googling indicates that John was born in Reading, Berkshire.
The following might be relevant:
A Charles GOLDING married a Mary A WHITNEY in NSW in
1857.
A Jane GOLDING was born in Liverpool NSW 1858, parents Charles & Mary A.
A Jane LOW died 1945, Auburn NSW, parents Charles & Mary Ann.
JAP