Yuunshi

Than that answers at least part of the question.

We know that they are not of Toguchi's teaching (at elast under those names)
So by default they must have been thu Trombly or your teacher himself.

Which kinda narrows it down.

Do you have any idea where nd with whom Mr. Trombly studied?
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I did battle with ignorance today.......and ignorance won. Huey.