I know all but two.
You mean Mimic and Changeling?
Fun fact: They are listed in the order they joined the X-Men
First Row: Professor X, Cyclops, Iceman, Angel.
Second Row: Beast, Marvel Girl (Jean Grey), Mimic, Changeling.
Third Row: Polaris, Havok, Nightcrawler, Wolverine.
And yes, they are in order from whence they joined.
@chasereis: I don't quite remember, but I do know this is only half of what was out there. The second part contains every other character that joined the team through the Outback era.
Ooh... that'd be nice to see! Anyone have the complete scan!?