Hi Trisha

Sorry if I am going over what you already have but I was looking at this family and got carried away.

There are some very mixed up family trees with Priscilla born 1842 (daughter) on them.

PRISCILLA married Stephen S PEACH, September 1866, Lambeth, 1d 640.
She appears on 1871 with her parents, married, wife of an engineer, with son aged 3.
No family tree has his name that I have found.
ELLEN married John Horace GREEN, March 1873, London City, 1c 67
ANNE MARIA married John Thomas BROWNING, widower, March 1878, Colchester, 4a 366
One tree has him arriving Sydney, Aust. 1875. Dont know how as he married 1879 and appears on 1881 Census with her .
She is alone in 1891 with children, mar, instructor in music and has 3 of her sister Ellens children with her.
1901 she is still alone ( under Brawning) and down as mar.
I am posting all this as hopefully other people researching might not copy the mistakes on some trees and find this by 'googling'
One Tree has John Dibley born USA

It is quite possible Annies husband did desert her and remarried in Australia;
John T BROWNING married Beatrice E J MacCLEAN. 1886 , Sydney, Aust.
Cheers,
Trish