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