The Japanese surnames etymology dictionary.
① There is a 樋渡 surname. Tochigi-ken Haga-gun Mashiko-machi Mashiko tells me that Shikoku region is out. Unknown times. Ibaraki-ken Hitachi-shi In Kawajiri Town tells that she came from Miyazaki-ken and came through Kyouto-fu Kyouto-shi . Unknown times. It was in the Azuchi-Momoyama period as a vassal of Mr. Satake based on Ibaraki-ken . 樋渡 reference.