Sometimes errors in genealogical records are unintentional. Census and christening records indicate my grandmother was born in Wythe Township, Hancock County, Illinois. Grandma always thought she was born in Tioga, Hancock County, Illinois-in nearby Walker Township. On every record from her marriage through her death, Grandma's place of birth was put down as Tioga--because that is what she thought it was.
The error wasn't intentional, but rather was based upon her belief as to where she was born.
I have noted the discrepancy in all the records and made a note about what Grandma thought in her file so that someone else will know why there are the differences in her records.
Errors happen for a variety of reasons. I was lucky in this case because I knew how the errors got there. That does not always happen.