Just read an "interesting" article here:
http://www.kiyojuteryu.org/soke/articles/ninjutsu.shtml
Among other strange stuff, it claims that James Mitose (Kempo teacher) was actually the first person to teach Ninjutsu in America! Move aside Steve Hayes!
Also claims that Seiko Fujita was "the headmaster of Koga Ha Sato Ryu. He was as such an accomplished master of Ninjutsu".
Interesting.