See, I figure "and their families" IS a bit of an afterthought, since it's the girls, and not the families, who are receiving the doll. That said, everything I've read says it's grammatically acceptable to have a comma at the end of a list, or not.

Commas aside, the second sentence as a whole is a bit long (I counted 24 words). But I'm not feeling inspired to revise at the moment; maybe someone else can? [img]redface.gif[/img] I suppose we COULD remove "and their families," if that aspect really is like an afterthought.