Yun Byung-in

Yun Byung-in (also spelled Yoon Byung-in) founded a Kwon Bup club at the YMCA in Jongno, Seoul, in 1946.^[1][3] After he disappeared, his senior student Lee Nam Suk carried on the teaching, and after the Korean War Lee and Kim Soon Bae reopened the club as the Chang Moo Kwan.^[1][3]

Background #

Yun had trained in Shudokan karate under Kanken Toyama and is said to have studied ch'uan-fa in Manchuria. He was a close associate of Chun Sang-sup.^[2]

What happened to him #

Sources disagree:

• One account says he went missing during the Korean War.^[1]
• A footnote in another article says he defected to North Korea with his elder brother, a North Korean army officer, and died of lung cancer on 3 April 1983 in Chongjin.^[2]