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Find more Yamaguchi relatives and grow your tree by exploring billions of historical records. Taken every decade since 1790, the U.S. Federal Census can tell you a lot about your family. For example, from 1930 to 1940 there were 71 less people named Yamaguchi in the United States — and some of them are likely related to you.

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What if you had a window into the history of your family? With historical records, you do. From home life to career, records help bring your relatives' experiences into focus. There were 834 people named Yamaguchi in the 1930 U.S. Census. In 1940, there were 9% less people named Yamaguchi in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 763 people named Yamaguchi were living in the United States. In a snapshot:

  • Although 49% were female, the most common name for males was James
  • 15 owned their homes, valued on average at $2,399
  • 86%, or 103 people, lived in homes they rented
  • The youngest was 1 and the oldest was 78

Learn where they came from and where they went.

As Yamaguchi families continued to grow, they left more tracks on the map:

  • 59% were first-generation Americans
  • 325 were born in foreign countries
  • 39% were born in foreign countries
  • 10% migrated within the United States from 1935 to 1940