Hi everyone. I have just joined, and don't know much about using a computer, so hopefully can navigate my way around here. My question is, how do you find out who a persons birth mother is? Quick rundown...Grandmothers half sister claimed to be my gmums birth mother. I have her birth cert, (England) and it states her mum as her mum, not her half sister. Everyone involved has passed away, so have to do the sleuthing myself. Is there any way of finding out? Thankyou.