I know you asked for "online", ChrisD, but you might also consider the Church of Jesus Christ and Latter Day Saints (Mormons) - known in genealogy circles as the LDS. They have Family History Centres at various places round England with (typically) microfilm of the full Birth, Marriage and Death records held at the Family Record Centre in London, microfilm or microfiche of census records and other material. There's no charge, though they will take donations, and you don't have to join their church. There's one in Staines. If you can get to one you will find fuller records than on line. Look in your phone book and give them a call to find out times etc. I was too tired last night to think of this!