Hi there, you would need to trace her tree back and then come forwards. If you have a rough date then it should make it easier - eg there is one born in 1900 Isle of Wight and one born 1913 Leicester. Do you have the original birth certificate, am guessing you do. You can order the original birth file. You can do an electoral search at the archives from this date and see how long she lived there. When she stops living there that could mean she married or died. Chances are very slim that she is still alive. You can also apply to the courts for information (do you know if it was guildford court). I run a tracing service so happy help to if you get stuck. Jenny