I have had several members of my family who were born in the 1920/30 appear as open entries and a few over 100 as closed, so as someone has said it is a bit of a lottery. They are very good for opening the over 100 if you ask, but I had to send by e-mail a copy of my Mum's Death Certificate to open her's. Mum's brother who was 10 years younger and still alive today appeared as an open record.