So far there is the unnamed creator, one NPC I have made, and one more I will be making for a new plot. There are assumed to be dozens of unnamed NPCs and potential PCs that practice this school of martial arts. It's definitely a less popular school, but I didn't think I needed to specify a number of students or make up a list of names for a roster.
If you mean the poetry schools, they were groups of poets from a particular area during a particular era. I left the specific locations and dates they were active vague to avoid delving too deep into pre-RP history, since recently rediscovered ancient poetry likely came from Earth, lost civilizations from pre-RP or the early RP before Yamatai, or very early Yamatai. There are supposed to be eight 'immortals' from each school, basically the most talented and famous. I only created names for a few myself, to leave room for later creations or for other players to add names as they create poems. In case they decide they want to create a recurring name who writes a certain way, for the type of style they use.
I'm not sure what you mean by the second part. There's two sentences describing what the page is right at the top, before the lists of schools, poets and poems.