The Japanese surnames etymology dictionary.
① Topography . From below. There is an example where Ura means "back". In the Shimane-ken western part (formerly Iwami-kuni) in the Edo period, Kyouto-fu Kyouto-shi was in Warring States in Keihoku in the Ukyo Ward.
③ Fukushima-ken Minamisouma-shi Born of Shimoura Odaka-ku. A place name with a record since the Edo period. Fukushima-ken Souma-shi Nakamura was in the Edo period in the Samma Nakamura Samurai of the Clan Office. Tradition of the same samurai.