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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青森県 平川市 大光寺二早稲田の名字

About 30 【滝本】6
About 20 【対馬】5
About 10 【大川】6
About 10 【長内】5
About 10 【芳賀】6
Very rare 【赤平】5
Very rare 【岩淵】5
Very rare 【太田】7
Very rare 【小川】7
Very rare 【小山内】5
Very rare 【杉沢】5
Very rare 【鳴海】5
Very rare 【藤田】7