Etymology and distribution of 保気口.

Hokiguchi 【保気口】^{レベル3
About 50}  The Japanese surnames etymology dictionary.

Saga-ken , Miyazaki-ken , Nagasaki-ken .

① Saga-ken Kashima-shi Takatsuhara was a Kamishima clan of the clan office, Kumamoto-ken Hitoyoshi-shi Futano Town was in the Edo period in the Hitoyoshi clan of the clan office.

② Miyazaki-ken Miyakonojou-shi Yamada Town Originated from Yoshida in Yamada's small letter. There was Yoshimuta gate of the gate division system in the Edo period in the same place.