I have two sets of family which apear to be the same ones from brer 1841 census and 1851 census
Now all names are the same but when it comes to joseph jahn on the 1941 census they were born in 1834 and are 7
but in 1851 census they were born in 1843 and 1846
all other family members match
I think I might have this bit sussed......

On the 1841 John and Hannah have George(2) and Esther(5m).
The John and Joseph aren't theirs. On the IGI twins John and Joseph Cusworth are baptised on 26 Jan 1834 - mother Tamer Cusworth. (Not the one in the same household - she's too old.)
Also on IGI - christening of Tamar Cusworth on 29 Aug 1802 (born 9 Aug 1802) - parents Joseph Cusworth and Tamer Wade.
(All these are Wath-on-Dearne)
Will keep trying to sort these families......there's loads of them!! Somewhere along here my lot MUST be linked!

Sally