Etymology and distribution of 生岩.

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

Nara-ken Kashihara-shi , Oosaka-fu . A variant of a 万木 . Hyougo-ken Amagasaki-shi Amamasaki and Kitagiuchi were in the Edo period in the Amagasaki clan of the Clan office. 万木 Yurugi reference.