Murphy/Boyd - Sydney & Northern Rivers NSW

Hi again

My gggg/mother Hannah Filomene Murphy b 2 March 1833 in Sydney (dau of Dennis & Margaret Murphy) m 3 May 1852 at St Mary's, Sydney to John Boyd b c 1823 Ireland.  I'm interested in finding information on Hannah/Anna/Johannah's parents and siblings.  I do know that she had a brother Thomas.  The newspaper notice of her marriage states 'youngest daughter of Dennis Murphy of Driutt Street, Sydney' - so I'm naturally enough assuming she had an elder sister, but just because her mother is not mentioned, not sure if she is alive or deceased at that time.

Again, any help would be greatly appreciated.

Thanks

Kerri