Hi LAD41
From the Family Search site I have a date of birth for John of 9 May 1820. This comes from the Non-Conformist records, which is useful, as the date of birth rather than that of christening is recorded. The family were Baptists, John's grandfather, also John and father of Hannah (nee Manning) being a minister in Spaldwick. This site also gives John and his family in censuses from 1841, 1871 and 1881, so shows his children and his wife Elizabeth (nee Burton). John seems to have been a tailor like his father Richard. I believe he was the oldest child, followed by Rebecca.
Mercy moved from Hunts after her husband Isaac Fairey died and settled in Burnley, Lancs, where she married James Crow and had a daughter Nellie. Annie Church (no relative as far as I have been able to find out), widow of Isaac's brother Amos, was also widowed young and moved to join her there. Amos & Annie's son Alfred Ernest was my grandfather.
Gillg