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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福井県 南条郡南越前町 島の名字

About 60 【坂川】5
About 20 【嶋崎】5
About 10 【林】7
About 10 【土嶋】3
Very rare 【神門】4
Very rare 【島崎】6
Very rare 【浜野】6