This might be repeating what has been said earlier, but:
From what Ryan said in his initial post, I'm 99% sure that is the correct family in the 1841 census in St Paul, Blackheath, Kent. Blackheath, although in Kent then is now part of greater London and is on the south bank of the Thames, near Greenwich.
Charles 1797 not born in county
Sarah 1800 not born in county
Thomas 1824 born in county
William 1828 not born in county
Frederick 1832 born in county
Emily 1835 born in county
Amelia 1839 born in county
There is a baptism for
John Thomas Blackhall Bennett
mother Sarah
father Charles Wooton Bennett a victualler
21st May 1824 St Giles Camberwell (same church where his parents, married)