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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秋田県 鹿角市 十和田錦木五軒屋の名字

About 30 【高瀬】6
About 20 【土館】3
About 10 【黒沢】6
About 10 【大森】6
About 10 【金田一】4
About 10 【松宮】5
Very rare 【沢田】6
Very rare 【土舘】3
Very rare 【中村】7