You are welcome Igor,
We have the same information about Kawaishi apparently. He was born in Kyoto and learnt some unspecified Aikijujutsu style at the Dai Nippon Butokukai until 1920 when he left for the United States and then United Kingdom.
It seems that he taught Aikijujutsu in Liverpool and, to make both ends meet,fought against wrestlers and boxers under the pseudonym Matsuda.
What is interesting is that Kawaishi got a sandan (thir dan) directly from Kano in 1931. It seems that back in the days, people with strong Ju-jutsu background would get ranked in judo as well. To make it further complicated, it also seems that Ju-jutsu people would also call sometimes their art judo. so things are not that easy to sort.
What is also known is that the method developed by Kawaishi was a bit different than that of the Kodokan and that Kawaishi added more material from previous experiences in Ju-jutsu, and guess what the ashi kansetsu waza are part of it. This eventually turned into a bitter rivalry between groups. At any rate, many old time judo players in Europe do still consider Kawaishi as a major source of inspiration.
To find out more, we would need to consult the newspapers archives in Liverpool.
If you like leg locks, you might have heard of Gokor Chivichyan who is considered one of the very best in that speciality. I know he made some videos on the subject and his skills are very impressive.
Deception is one of Kenpo´s best technique.
Väck ej björnen som sover
Raphael Deutsch