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 石川郡玉川村 小高東耕地の名字

About 50 【溝井】5
About 30 【矢吹】5
About 20 【関根】6
Very rare 【小林】7
Very rare 【吉田】7
Very rare 【須釜】4
Very rare 【鈴木】7