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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山形県 西村山郡朝日町 石須部の名字

About 60 【長岡】6
About 10 【熊谷】6
Very rare 【岸】6
Very rare 【佐藤】7
Very rare 【種沢】3