Etymology and distribution of 日土.

Hidzuchi 【日土】^{レベル2
About 40}  The Japanese surnames etymology dictionary.

Aomori-ken Hachinohe-shi . Thing . From the castle and "Sakari" of the favorite character. Aomori-ken Hachinohe-shi Uchimaru was in the Edo period in the Hachinohe clan of the clan office. The same clan says that he changed his name from Yamaguchi surname in the Edo period. 山口 Yamaguchi reference.