This error is connected to the 'original sin' of mixing up the two Jane and John Lewis families. I have, in my notes, a complete 'mirror image' of the John and Jane juniors superimposed as the children of John and Jane seniors. I think that it came about when I was searching for Joseph, (1833), in the 1851 census. The result was the link that I sent you for the 1871 census and I took those children, and their dates of birth on the presumption, at that time, that I was looking at the 1851 census.
Now all that I have for Jane and John seniors is that they had a child, Joseph, (1833), who, in turn had 6 children. David, Thomas, Rees, Ann, Elias and James.
Regards, Peter