Ooba 【太場】3 The Japanese surnames etymology dictionary.
Okayama-ken , Hiroshima-ken . Creation . In Hiroshima-ken Ootake-shi , I tell him that Mr. Oda's residents who had lived since the early Edo period added "on" as they wanted to go over Oda at the Meiji New surname. Hiroshima-ken Ootake-shi Distributed in Nanin Rong . There is 小田 surname in the same place. 小田 reference.