Atsuda 【敦朶】1 The Japanese surnames etymology dictionary.
Niigata-ken Uonuma-shi , Oosaka-fu , Nara-ken . Terrain . From oil and protruding land. Niigata-ken Uonuma-shi Tells Horinouchi that he came from Niigata-ken Nagaoka-shi Yamakoshi Takezawa and resigned . There is also a story that there was a raw silk wholesaler in the same place. Estimated in the Edo period.