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Find more Kumagai 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 18 more people named Kumagai 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 124 people named Kumagai in the 1930 U.S. Census. In 1940, there were 15% more people named Kumagai in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 142 people named Kumagai were living in the United States. In a snapshot:

  • 90% reported their race as other than white
  • On average men worked 48 hours a week
  • 39% were children
  • 13% of women had paying jobs

Learn where they came from and where they went.

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

  • 71 were first-generation Americans
  • The most common mother tongue was Japanese
  • Most mothers originated from Japan
  • 6 migrated within the United States from 1935 to 1940