Etymology and distribution of 双森.

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

Gunma-ken Oota-shi .

① Topography . From the back of the forest. Gunma-ken Oura-gun Meiwa-machi In Minami - oshima, I tell you that I came to 1188 (Bunji 4 years) and changed my name from Masuda surname. 見田 Mita reference. Gunma-ken Oota-shi There is a tale that it was written as "Morijiri" in the East district town. It is unknown whether Morijiri will exist. Shiga-ken Kouka-shi Konan-cho Morijiri is a place name with a record since the Heian period.

② Toyama-ken Nakaniikawa-gun Kamiichi-machi Birth of Morijiri. A place name with a record since the Muromachi period.