Etymology and distribution of 久保畠.

Kubohata 【久保畠】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Niigata-ken Tookamachi-shi . Terrain . From Sawa Small volume is a small ranch in estimation. Niigata-ken Tookamachi-shi Street Yamako is based.

※ In Toukyou-to Setagaya-ku there is a tale that Niigata-ken added "Sawa" to Komoraku of His last name and called "Meiji New Last Name". 小巻 Komaki reference.