The Japanese surnames etymology dictionary.
① Aichi-ken Chita-gun Minamichichita-chou Origin of Utsumi. A place name with a record since the Heian period. Miyagi-ken Sendai-shi Aoba-ku Kawauchi was in the Edo era in the Sendai Samurai of the Clan office. There is a tradition to the same clan.
⑤ Topography . Toukyou-to Edogawa-ku In the Edogawa it was awakened by helping when shipwrecked Tokugawa Ieyasu, a military commander of the Warring States period, Azuchi-Momoyama period, Edo period, to Chiba-ken Chubu (formerly Kazusa) in the wreck in Tokyo Bay Tell them that they changed their name from Kakura surname. 角倉 reference.