YOON, Kwe-Byung studied Shito Ryu Karate under Mabun Kenwa Sensei while he was he Chief Master of the Han Mu Kwan in Toyko in the late 40's. I've seen him listed from 4th to 7th in Shudokan depending upon the source. How accurate that is depends again upon whom one wishes to believe. Regardless of what rank he may have held, it is apparent that he was held in very high esteem by many Japanese seniors and contemporaries.
How is it apparent that Dr. Yon was held "in very high esteem by many Japanese seniors and contemporaries"? Where does that come from?
As a side note, the YMK/JDK/HMK thing isn't that big of a deal, at least not to me. It merely serves as one example that came to mind as I posted.
I would say it is a big deal for you, since you mention it so often.
I first heard of the schism from GM Lee Chong Woo in an interview from World Taekwondo in 1997 which was reprinted by Al Cole on one of the JDK sites.
You mean this page in this history section? http://taekwondojidokwan.com/ If so, then you learned about it recently. And it doesn't mention any "schism" in the article. However, the Chosun Yun Moo Kwan/Jidokwan section from the Modern History book immediately follows the GM LEE Chong Woo interview. Perhaps you were reading that and misunderstood that to be GM Lee's interview. But funny how you once again cite to a Korean source for information, instead of a non-Korean one, which you claim is less apt to be "biased".