Kawahama 【川浜】3 The Japanese surnames etymology dictionary.
Yamaguchi-ken Iwakuni-shi , Yamaguchi-ken Hikari-shi . A variant of 清広 . In estimation, Yamaguchi-ken Iwakuni-shi Yokoyama changed name "Hiroshi" which Mr. Yoshikawa of Iwakuni lord of the clan office used as a transit and changed name in early Edo period. Yamaguchi-ken Iwakuni-shi It was in Edo era in Zhongshan Zhou Town.