Shitoma 【志苫】2 The Japanese surnames etymology dictionary.
Hyougo-ken , Aichi-ken , Toukyou-to . Nagano-ken Kiso-gun Ookuwa-mura Origin of Suwara. A place name with a record since the Warring States Period. Shizuoka-ken Kakegawa-shi Kakegawa was in the Edo era in the Kakegawa clan, Toukyou-to Edogawa-ku Kitakinozaki of the Clan Office. 栖原 Surname.
* Mie-ken Originated from SUBARA in Deguchi-gun. Period, location unknown.