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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広島県 尾道市 重井町ト中の名字

About 40 【村上】7
About 20 【藤井】7
About 10 【大出】5
About 10 【峯松】4
About 10 【柏原】6
Very rare 【大久保】6
Very rare 【河合】6
Very rare 【新庄】5
Very rare 【峰松】5