My great grandfather was informally adopted and I have been trying to trace his birth family. He was born in Spofforth on 12 January 1868 and was baptised on 15 January 1868. I have his birth certificate which shows his mother's name as Mary Ann Holland. There is no father's name given. I have seen a copy of his baptism record in Spofforth church. His mother's name was given as Mary Holland and it showed that she came from Northallerton. I have been unable to trace any Mary Holland or Mary Ann Holland in Northallerton. Can anybody help me, please?