Hermione had been biting her lip—meaning, she was in thought. Now she said, "You want to find all the first-gens? Go to the Ministry’s Hall of Records, where they have a list of all magical births in Britain. Copy all the names born between 1st September and 1st September of whatever year. Cross off the names of babies whose surnames mean they come from magical families. The sixteen or so names that are left are your first-gen children born that year. For each name, use the Point-Me spell and Apparation, over and over, to find out exactly where the child lives. When the kid is ten years old or when the kid first does accidental magic, whichever comes second, visit the kid and his family, and tell them about MMA."