It's doing my head in. I'm researching Norton which was a Derbyshire Parish but eventually moved counties as it became part of the city of Sheffield. Histories of Sheffield don't mention it as it was in Derbyshire to the 20th century and histories of Derbyshire don't mention it as it is now in Yorkshire. I wondered if anybody had this happen to them with for instance Manchester where Cheshire villages are now Manchester? It is extremely frustrating as the data is spread across 2 county archives too, plus its in a totally different Bishopric.