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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青森県 五所川原市 川倉林下の名字

About 70 【白川】6
About 60 【中谷】6
About 20 【泉谷】5
About 10 【秋元】6
About 10 【田中】7
Very rare 【浅利】5
Very rare 【其田】5
Very rare 【三潟】3