Etymology and distribution of Japanese surnames.

The Japanese surnames etymology dictionary.
https://play.google.com/store/apps/details?id=info.jigensha.jcedfreeGoogle Play で手に入れよう https://apps.apple.com/us/app/id1471109324
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福島県 岩瀬郡天栄村 大里丸山の名字

About 40 【添田】5
About 40 【常松】5
About 20 【丸山】7
About 20 【須賀】6
About 10 【熊田】6
Very rare 【稲川】5
Very rare 【大槻】6
Very rare 【山口】7