Interesting. If you can find that newspaper article, I'd love to read the details. Have you confirmed that the dojos in question were teaching Karate and not some other JMA such as Judo or Kendo? After all, Karate didn't come to Japan until the 1920s, so I wouldn't expect that Japanse instructors would be teaching Karate in Korea prior to that. Is it also confirmed that these instructors were teaching Koreans and not just other Japanese? If this is correct, it raises questions. I believe there is solid documentation that the founders of the kwans originally trained outside Korea (in Japan mostly). If Koreans were learning karate from Japanese instructors in Korea for 35 years before the founding of the Kwons, then what became of all those students? Did they join the kwans? Did those lineages die out? Any KMA experts want to chime in?