What are the Organisation's somebody names?

Here are the released names:
Xemnas: Ansem(the Impostor)
Xigbar: Braig
Xaldin: Dilan
Saix: Isa
Vexen: Even
Lexaeus: Aeleus
Zexion: Ienzo
Axel: Lea
I wish I remembered the fansite I found the rest, but right now it escapes me.

If you want their backstories, ckeck this:
link

And Xion(who looks like Kairi) is a replica Xemnas created to harness the power of the keyblade for himself. He used her to absorb Sora's memories from Roxas, so that Sora never woke up again.
She's not a Nobody and she's not a Somebody and as a result, she cannot have a Heartless or a Nobody.

If you play kingdom hearts Birth by Sleep you will get all the names. It comes out september 7, 2010. Yes Xion is Sora. Play all the games and you will understand.