Not sure I understand you

The 1841 albeit the 1st useful census is in fact the least useful of the census !
Ages of adults (over 15) were normally rounded down to lower 5 year multiple, and PoBs (Birth place) were not shown as such - only a Yes or No answer to the
question - 'Born in County?'
Pretty sure the above family is correct based on what you said.
Kind regards, S