Kashuu 【加洲】3 The Japanese surnames etymology dictionary.
Aomori-ken Aomori-shi , Aomori-ken Kitatsugaru-gun Tsuruta-machi . Distribution including kamayu too. Terrain . From a wetland like a kettle. Aomori-ken Kitatsugaru-gun Tsuruta-machi It was in Edo era in Sarasawa . In Aomori-ken Hirosaki-shi Wakudo-machi in the same town he tells that he built and built a kettle weir in Sengoku period. Aomori - ken Hirosaki - shi In Nagasaka Town tells us that it was given from Tsugaru Shingin, a warrior of warring States, Azuchi Momoyama era and Edo era.