It is my impression that there was ONLY a kids class in Iwama most of the time. The only people over 15 were visitors.
Interesting, so what about Saito, and other senseis like INagaki, Hirosawa, etc? Are they counted as teachers rather than students in the context of what you mean? (I am thinking of this story: http://www.aikiweb.com/forums/showth...300#post211300