<<snipped>> it seems that anyone who was in the 1939 National Register and is still alive can "get their own information for free under the Data Protection Act" in the form of a Subject Access Request. I don't know if this includes information on others living at the same address, but if so it could be very handy! <<snipped>> It won't - as far as I remember, access under the Data Protection Act will be solely to enable the requester to check the accuracy of the data held against themselves. Information about anyone else at that address will not be relevant to the accuracy of that person's own data. (You might say "But I need to check the accuracy of who else lived at my address" - it won't work, I suggest, since the accuracy or otherwise of that data won't affect you in the slightest.) Adrian B