Hi, I recall reading something from Shishida (one reference in the link)
that mentions the Aioi as Admiral Takeshita's group, the link above has a note commenting that the decision to split from Daito Ryu was taken by that group. It seems Admiral Takeshita and his interest group has something to do with this story; what was his relationship to Deguchi and Takeda? I have wondered if there were political reasons behind the efforts to rewrite history? It seems "Aioi ryu" was not a family art , it was some sort of affiliated martial art to a political group?