Well, one of the popular theory's now about James Mitose's Kenpo history is a claim that he was a maternal descendant of the Yoshida Clan.
Being that the Yoshida Clan was a prominate group in Japanese history, it's history is very well documented. So, what martial arts did the Yoshida Clan practice?
"It was during this decade that the position of Yokozuna was established. It was the result of the rivalry between the Yoshida and Gojo clans in their fight to have control over the sumo world. In 1789, Yoshida Oikaze petitioned the authorities "for the offical recognition of his own power to issue what he called, for the first time, the Yokozuna Menkyo, or Yokozuna license."(Cuyler, 1985, pg 80)
The first ever ring-entering ceremony to be conducted by a Yokozuna was held at the Fukuyama Hachiman Shrine in 1789 by the grand champion and popular hero of the time, Tanikaze Kajinosuke, which officially established the power of the Yoshida clan in sumo circles.
And of course:
"Kotaro Yoshida, student of Sokaku Tekeda (Daito Ryu Aiki-Jutsu), founded or inherited the Yoshida family style called "Yanagi Shindare Ryu, which combines several arts but is heavily Daito-Ryu based. He is best-known as being the person who introduced Morehei Uyeshiba, founder of Aikido, to Sakaku Takeda. ( He was heavily involved in the military espionage activities of the Japanese intelligence during WWII though the Dai Nippon Butokukai in Osaka )"
"Kenjii Yoshida , son of Yoshida Katoro, inherited the Yanagi Shindare Ryu, ( he relocated to North America before the second war, and refused to support the japanese war effort. ) He returned after WWII but was not welcomed by his father who felt betrayed by his son for refusing to support the military effort of his homeland and was banished from Japan.."
Again we find no (independant of James Mitose)history of Kosho Shorei Ryu Kenpo existing in Japan.
Being that the Yoshida Clan was a prominate group in Japanese history, it's history is very well documented. So, what martial arts did the Yoshida Clan practice?
"It was during this decade that the position of Yokozuna was established. It was the result of the rivalry between the Yoshida and Gojo clans in their fight to have control over the sumo world. In 1789, Yoshida Oikaze petitioned the authorities "for the offical recognition of his own power to issue what he called, for the first time, the Yokozuna Menkyo, or Yokozuna license."(Cuyler, 1985, pg 80)
The first ever ring-entering ceremony to be conducted by a Yokozuna was held at the Fukuyama Hachiman Shrine in 1789 by the grand champion and popular hero of the time, Tanikaze Kajinosuke, which officially established the power of the Yoshida clan in sumo circles.
And of course:
"Kotaro Yoshida, student of Sokaku Tekeda (Daito Ryu Aiki-Jutsu), founded or inherited the Yoshida family style called "Yanagi Shindare Ryu, which combines several arts but is heavily Daito-Ryu based. He is best-known as being the person who introduced Morehei Uyeshiba, founder of Aikido, to Sakaku Takeda. ( He was heavily involved in the military espionage activities of the Japanese intelligence during WWII though the Dai Nippon Butokukai in Osaka )"
"Kenjii Yoshida , son of Yoshida Katoro, inherited the Yanagi Shindare Ryu, ( he relocated to North America before the second war, and refused to support the japanese war effort. ) He returned after WWII but was not welcomed by his father who felt betrayed by his son for refusing to support the military effort of his homeland and was banished from Japan.."
Again we find no (independant of James Mitose)history of Kosho Shorei Ryu Kenpo existing in Japan.