WP Family Tree is a graphical family tree generator plugin for WordPress. Each family member have their own blog post.
It is a nice toy, it does work
But does not work well for my case where i have almost 4000 people. a) The people all show up in one page, b) the dropdown has everyone's name in it, c) There is no security to speak off, d) there is no support for searching the data eg all family members who names begins with, etc