Apologies, I realise this is a very old post so I am sure you have now got the info you require or may not be using the site any longer. However, I wonder if you could help me regarding James Neave?
I have lots of information on James Neave b honing 1827 as he is grt x2 grandfather of my partner, except that I cannot seem to find him, his wife or his first two sons (james and john) on the 1851 census. Have you been able to locate them? I also found the below marriage to Mary A Bacon but in 1847 Westminster - and as I couldn't find them on the census of 1851 I was not sure if this was the correct James of Honing to prove Mary was his wife.I also do not have bc of any of the children to check their mother.
How do you know they were living in John Street Chelsea in 1852, is this from Mary Ann's birth certificate?