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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岩手県 二戸市 浄法寺新山の名字

About 40 【小船】4
About 30 【佐藤】7
About 10 【勝又】6
Very rare 【舘】5
Very rare 【平野】6
Very rare 【山本】7