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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長野県 木曽郡木曽町 新開栗本の名字

About 10 【中宿】3
Very rare 【青木】7
Very rare 【斉藤】7
Very rare 【田下】5
Very rare 【武居】5
Very rare 【野田】6