This to me sounds like an ideal use for a blog type of site in addition to your lineage based site. You can install something like Wordpress in your hosting space and create posts (stories) in it about the individuals and then just edit your lineage based sites menu with an additional entry to the stories sub-site. A little more editing could provide a link from the individuals in the lineage site to their story in the Wordpress sub-site. As you mention TNG there is a TNG plugin for Wordpress and so you could do this the other way round have the Wordpress install as your main site and serve TNG through the plugin for the lineage and all the other functionality that TNG provides.