A gran found her birth dad after a 37-year search thanks to a 23andMe DNA test. Anna Sharp, now 52, learned aged 14 she had a different biological dad to her seven older siblings – but she had no idea who her birth dad was. Anna Sharp and son Thierry. A gran found her birth dad after a 37-year search thanks to a 23andMe DNA test. Anna Sharp with daughter Alex on the birthday, where she was given a gift that changed her life.