Etymology and distribution of 杤平.

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

Chiba-ken Minamibousou-shi , Kanagawa-ken . 伴 There surname. In Chiba-ken Minamibousou-shi Yoshizawa tell them that they were engaged in agriculture by pioneering. 伴 Ban reference.