I am just wondering if anyone has found examples of an individual who stated their place of birth on 1901 census as Dublin (for example) and then in 1911 stated as another county (eg, Meath).
This gent would have lived around Cabra/Ashtown/Dublin at both years so this isn't an issue of boundary of county moving.
One possible avenue I am looking at is one family grouping of his surname was around Dunshaughlin and that is not far from Dublin as crow flies - however, it really has been in Meath at least since Griffiths Val and probably before.
So, I still don't think it was about shifting boundaries. I am more thinking that perhaps the enumerator in 1901 didn't pay attention or the head of household/male who later in 1911 declared himself as born in Meath just wasn't clear on detail of his birthplace. Perhaps someone put him right in the intervening years.
I am just curious if anyone else saw similar and got to the bottom of possible theories as to why the individual revised their place of birth in the later census,