Etymology and distribution of 河之.

Kawano 【河之】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Shizuoka-ken . Shizuoka - ken Iwata - shi Tell Tsu Tsu 's descendant who was in Toshirojima said that he called it. Estimated in the Edo period. Shizuoka-ken Iwata-shi It was in the Edo era in the Shimano part. 土射津 Tsuchiidzu reference.