The Bujinkan (武人館) is one of the schools famous for teaching Ninjutsu, the Bujinkan in fact contains nine distinct koryuBudo, three of them are indeed Ninjutsu ryuha. It has dojos throughout the world. It is headed and operated by Dr. Masaaki Hatsumi and is one of the X-kan.
... from 45 to 64, and 11.8% who are 65 years of age or older. The median age is 36 years. For every 100 females there are 96.3 males. For every 100 females age 18 and ...