A cousin of my own had a terrible shock a few years ago. She had to get her baptismal cert for some reason, and the mother shown on the cert was a different name; not only a different name, but the name of another person in the family, whom she believed to have been a young girl of about 14 at the time! Well, you can imagine. Shock horror all around, theories and suggestions trying to work it all out. We had all but convinced ourselves that there was definitely something shady going on back then when I double checked the 'other person's' age on the records She would have been five at the time! So we all relaxed and blamed the priest for not concentrating!