Etymology and distribution of 宇部本.

Ubemoto 【宇部本】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Iwate-ken Oushuu-shi . Summary . Synthesis of Oikawa and Onodera. Tradition at Iwate-ken . Estimated in the Edo period. 及川 Oikawa reference. 小野寺 Onodera reference.