Etymology and distribution of 杤久保.

Tochikubo 【杤久保】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Tochigi-ken . Terrain . Tochigi-ken Shioya-machi In the fleet, I tell him that he added "瀬" because I came across the Kinugawa river that flows through the area along with the real name. Estimated in the Kamakura period. 伴 Ban reference.