I'm with the other AC
names and addresses, Telephone numbers, dates of birth...
At our nursery and primary school for that matter, we (all parents) are provided with exactly this list for all the classmates of our children, If I remember rightly it was sent via email from the parents representative of the class. It is of great help in arranging meetings for offspring, passing on information on measles/flu/tummy problems not to mention gossipping other halves, Yes, we were asked if we would like to be on the list or not.
I'm struggling to find a reason why this "loss" is a real problem. And why would anyone want to move house because of it ... mountain meet molehill !
Ok worst case... Someone has moved house because of a child/wife/husband beating partner, and now this information has been lost. of course it's obviously going to find it's way to the convicted beater and he/she will exact revenge. I suspect the chances of the data reaching him are much less than the chances of him/her actually happening upon his/her victim in the street.
Please keep things in perspective in future .