I noticed this on Wikipedia and assume it's a generic MW thing. In a category of persons, I see the list of articles where some persons are listed under the first letter of their first name and others by their last name. E.g.: A John Adams B Barney Rubble I looked at the [[category:..]] statements in the articles and couldn't see anything that could explain it. How does it decide whether to use first or last name and how does it know it's a name of a person and not just a two-word article name? Mike