Etymology and distribution of 小垣原.

Ogakihara 【小垣原】^{レベル2
About 10}  The Japanese surnames etymology dictionary.

Iwate-ken Ninohe-gun Ichinohe-machi . Iwate-ken Ninohe-gun Ichinohe-machi Tell the story that in the late Edo era, the branch of the last family name of spring called it. 春本 Harumoto reference.