Etymology and distribution of カルフーン.

Karufūn* 【カルフーン】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Ooita-ken . There is 釘宮 surname in Ooita-ken . Ooita-ken Bungooono-shi I tell you that Ikeda in Chogoku- cho lived in the Muromachi Period. 釘宮 Kugimiya reference.