The Japanese surnames etymology dictionary.
Chiba-ken , Hokkaidou . Chiba-ken Katori-gun Tako-machi It is a pioneer at Idoyama to tell Saitama-ken Kumagaya-shi Kuga (Kuga) that Mr. Ichinaru has said it. Kugu is a place name with a record since the Kamakura period. 私市 reference. In Toyama-ken it is crowned. Toyama-ken Kurobe-shi Daigojin-ku · Fabric middle zone is based.