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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長野県 上田市 長十林寺の名字

About 100 【坂口】6
About 50 【大久保】6
About 20 【高寺】4
About 10 【浦本】5
Very rare 【上原】6
Very rare 【山田】7