But then, I'm confused over just what your list is about. I thought it listed the types of NPCs you might encounter off thier homeworlds. Now it seems that you're talking about viable PCs.
In my defense, I point to the very first sentence of this thread:
"My last posting of house rules mentioned starting knowledges, but before I do that I instead decided to post what sophonts I allow as player characters..."
I was asking if I had left out any possibilities in the Marches...