David Kerrison, the first foreigner who received 5th dan in Miyazaki
デイビッドさん剣道５段　県内在住外国人初 (2020/05/24)
https://www.the-miyanichi.co.jp/chiiki/_45113.html

David Kerrison - a Rock artist's natural music played with a Japanese heart
和の心で奏でる ロックアーチストの自然派音楽 (2021/03/11)
https://rkb.jp/article/4101/