The Japanese surnames etymology dictionary.
② Topography . From field. There is a word of Sako (Sako). Hiroshima-ken Fukuyama-shi Kanamoto -ken Yatsushiro-shi Chikoncho Omuta, Ishikawa-ken Nomi-gun Tell Kawakita-machi that he was engaged in agriculture in Totanda. Estimated in the Edo period. Okayama-ken Okayama-shi Kita Ward Marunouchi was the Okayama Samurai of the Han Clan, Iwate-ken Morioka-shi Uchimaru was in the Edo period in the Morioka Samurai of the Clan Office. Good neighbor . Hiroshima-ken Onomichi-shi Distributed in defensive town.
③ Topography . "Da" was added to the work which is the surname of Amagi archipelago of Kagoshima-ken . Estimated at the time of returning to Japan in 1953. Kagoshima-ken Ooshima-gun Isen-chou It is distributed in Izen. Where to 作 there last name. In Hyougo - ken Koube - shi there was a case where the name was renamed for 1952 to 1959 on the grounds that the name is confusing with foreigners. 作 reference.