Etymology and distribution of 当代.

Toudai 【当代】^{レベル2
About 10}  The Japanese surnames etymology dictionary.

Ibaraki-ken , Shimane-ken , Kanagawa-ken .

① Topography . From the field and Oka. Ibaraki-ken Kasama-shi In Fukuda tells that Mr. Kitamura was returning home and engaged in agriculture in the Kamakura period. 北村 Kitamura reference. Hyougo-ken Himeji-shi Tell her that she was engaged in agriculture in Funatsu-machi. Estimated in the Edo period.

② Topography . Add "Oka" to the field. Tottori-ken Yonago-shi In Ukifuku, let's say that the branch of the sardine name that was the descendant of Uchihachi Noh which is the battle commander of the North-South morning era. Estimated in the Edo period. 畑 Hata reference.