There algorithm is actually pretty good -- at least for the first several pages. It did a good job of presenting pictures of Derrick and my nephews over several ages. But as things got harder, it quit guessing quite as well. I did notice, however, that it seemed to pick up family resemblance, often mixing up cousins and other relatives. But it was just as good at mixing in a member of the family with no actual biological relationship to anyone else. At times it thought that Derrick looked like Tara or one of his cousins.
However, the bottom line is that at least this algorithm, as good as it appears to be, still has a long way to go over what a human who isn't all that good with faces (me) can do.