Winners of All-Japan Judo Championships in <a href="https://en.wikipedia.org/wiki/1937" class="extiw" title="en:1937">1937</a>. From left to right, Takamasa Takahashi, Kinsaku Sudō, Suekichi Tanaka, <a href="https://en.wikipedia.org/wiki/Masahiko_Kimura" class="extiw" title="en:Masahiko Kimura">Masahiko Kimura</a>, Kazuo Murakami, <a href="https://ko.wikipedia.org/wiki/%EC%9D%B4%EC%84%A0%EA%B8%B8" class="extiw" title="ko:이선길">Lee</a>, Shigeya Kakizaki.
<a href="https://en.wikipedia.org/wiki/Kodansha" class="extiw" title="en:Kodansha">Kodansha</a>
The Japanese book 『柔道百年の歴史』