Sidney Byett nee Robins (General)
I don`t believe John is William`s son and I can`t find a baptism in Awre in this timeframe.
My apologies, Johns baptism was actually in 1833 in Blakeney. 18th Aug 1833. So some almost 9 years after his birth. He then went on to marry Margaret James on 23 Nov 1846.