Etymology and distribution of 天狗.

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

Hiroshima-ken . Summary . Abbreviation of Aratani. Hiroshima-ken Kure-shi In Tobara- machi, tell her that descendants of Mr. Aratani of the same place left "rough". Meiji New Last name in estimation. 荒谷 Aratani reference.