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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新潟県 東蒲原郡阿賀町 豊実戊の名字

About 60 【猪俣】5
About 60 【佐藤】7
About 50 【伊藤】7
About 10 【玉木】6
About 10 【渡部】6
Very rare 【五十嵐】6
Very rare 【酒井】7
Very rare 【山口】7
Very rare 【渡辺】7