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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兵庫県 三木市 口吉川町西中の名字

About 80 【岸本】6
About 10 【鳴滝】4
Very rare 【吉田】7
Very rare 【木梨】4
Very rare 【衣笠】5
Very rare 【古河崎】2
Very rare 【長谷川】7