Wouldn't even work for a largish city. I have like 10 namesakes that I know of (none of them related to me), and my full name is not even that common. With birt

Wouldn't even work for a largish city. I have like 10 namesakes that I know of (none of them related to me), and my full name is not even that common. With birthdate, this is just the birthday effect waiting to bite someone.