Re: MARRIS family from Lincolnshire England

I was delighted to stumble upon this site during my Internet wanderings.
I think my great great great grandparents were John Barmby Marris and Susanna Langton Marris (nee Preston) - though I thought they were from Nottingham rather than Lincolnshire (Susanna baptised at St Mary's, Nottingham, 1803; John and Susanna married at St Nicholas's, Nottingham, 1825 (?)).
I think that their son, James Nall Marris, migrated to Australia in 1840 and married Martha Condron at St Peter's, Melbourne, in 1848.
Would be most interested in confirmation or otherwise of the above, and receiving any more information about my ancestors.