Hello everyone

I am in the process of trying to decipher my partner's auntie's family tree. Her maternal line were Warners from Suffolk.
I have come across an Ada Sophia Warner who is the illegitimate daughter of Sophia Warner. Ada was born in 1869 in Camberwell, London. On the 1871 census they were both living in Lambeth, London. I was wondering if it was possible to find out who Ada's father was. I believe Ada went on to marry Samuel Henry Mann and have a son named Oswald.
Any help on finding Ada's father would be greatly appreciated.
Thanks, Carrie
