Shimizugawa 【清水川】4 The Japanese surnames etymology dictionary.
Toukyou-to Hachiouji-shi , Kanagawa-ken , Niigata-ken Odjiya-shi . Terrain . From the well and swamp. Toukyou-to Hachiouji-shi Kawaguchi-cho is based. Say Sakamoto surname at the same place. Estimated in the Edo period. 坂本 reference. Toukyou-to Akiruno-shi Ippei was in the Edo period. Niigata - ken Odjiya - shi is based in Sakuramachi.