I'm not sure there can be a definitive answer to this but i think it's worth the ask.
All names have been changed. Apologies in advance for it being messy and confusing.
I'm currently researching DH's family tree and I'm trying to work out who his maternal 'blood' grandmother was so that I can continue the line - I have a choice of two ladies - Mary or Helen.
On the 1911 census DH's grandfather lived in Yorkshire, was married to Mary (maiden name Burton) and they had one son.
The couple's next child, a daughter, was born in Lancashire in 1915 and the mother's maiden name is stated as Burton - fine so far ( I don't have the certificate, just freebmd info).
The next child, DH's DM, was born in 1917 and I think the grandfather is now living with another woman - Helen Warren (also from the same village in Yorkshire). As far as I can tell they never married - I can't find a record and DH's DM was always cagey about her parentage.
However, here's where the confusion arises - the birth certificate states the mother as 'Helen Warren formerly Burton' (Helen was the informant).
I've checked Helen Warren as far as possible and I think she was single, never married, so it's unlikely that Burton was her maiden name too.
So why would she have put Mary's maiden name on the birth certificate?
Helen and grandfather stayed together and she did actually bring up the two girls and went on to have several children with him - although she used 'Warren' as the mother's maiden name on the birth certificates of these children.
It appears that Mary and their son returned to Yorkshire but she left the two daughters behind with her husband and Helen. I don't know whether she ever had any further contact with the girls.
So.....
Has anyone come across a dodgy entry on a certificate before?
Why would Helen name herself as the mother on the birth certificate but then give Mary's maiden name? Was Helen trying to indicate that although Mary birthed the child, she was 'unofficially' adopting her?
Or did Helen try to pretend she was the birth mother but was scared of authorities finding out so used Mary's maiden name to make it appear legal?
Who was the actual mother - Mary or Helen? I think it was probably Mary but just can't imagine having a baby and immediately passing the baby and my young daughter to the 'other woman'.
Thanks for sticking with it.