Couldn't find an answer for this, but does the Mizoguchi-ha Itto ryu have a Soke? I was under the assumption that there was no longer a designated head, and that the ryu was preserved by members of the Fukushima Kendo Renmei and other high ranking kendoka such as Ozawa Hiroshi Sensei. That was until I noticed the names associated with last year's demonstration at the Budokan which states 'demonstration by Naganuma Noriaki Soke and Hoshi Mitsuru' (video linked below).

Eric Hoffman