My (Jewish) great-grandparents came to the UK from Poland during the second world war, but due to their experiences of violent anti-semitism, hid their Jewishness from the public in the UK. The result was that both my maternal grandparents were non-practising Jews and so is my mother (my father is not Jewish).
My family has always considered itself Jewish and we have taken part in cultural activities, but (unlike my extended family who are very active in religious Jewish life, including some distant cousins who are rabbis), my parents and grandparents have never been members of a synagogue.
I'm 23 and since leaving home have become increasingly interested and involved in Judaism from a social and religious perspective (much thanks to connections to the community through the internet), and I would like to join my local synagogue. I contacted them and they sent me a membership form.
It asks if I'm Jewish by birth, and asks for details of my mother's or maternal grandmother's wedding location (synagogue). My grandparents and parents both had secular, non-religious weddings.
It also asks for details of any synagogues I am a member of currently or have been in the past - but I have never been a member of one before.
I consider myself Jewish by birth but I am worried that this will be challenged as I have no way of proving it.
Will I be allowed to join the synagogue and how should I approach this issue?