I am wondering whether this should have been posted under Middlesex, but you will appreciate the dilemma!
Edward Lazell was (according to the various dates he gave in censuses) born in 1791, 1792, 1796, or 1797, and gave his birthplace variously as St John's Hackney, or Bethnal Green. (St John's, interestingly, was in process of being built between 1791 and 1797.) No evidence of a birth/baptism in either place. He first married in Runwell, Essex, in 1815, when his parish was given as Wickford. He and his wife Susannah had five children in Wickford, all registered in the Independent nonconformist register. Between 1828 and 1835 they had four more at North Benfleet (poor woman) and she died in 1835. Edward married again the same year and he and his second wife Maria went on to have further children, all born at North Benfleet. He died in 1879 and is buried at North Benfleet. There are a fair few Lazells in Essex (see other threads) but I can't link them with Edward.
I have come across a situation before where someone gave two different parishes for his birthplace in different censuses, and in that case the individual turned out to be illegitimate. His mother lived in one and I eventually found him listed in that as her illegitimate child under her name, but his father evidently paid for his upkeep and he was brought up in the 'paternal' parish, later adopting his father's surname. However, I haven't found anything which would indicate this to be the solution in Edward's case.
Has anyone any suggestions? I feel that the fact that he was a nonconformist might be significant, but without any real reason for this ...