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Find more Jefferis 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 175 more people named Jefferis 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 795 people named Jefferis in the 1930 U.S. Census. In 1940, there were 22% more people named Jefferis in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 970 people named Jefferis were living in the United States. In a snapshot:

  • 96% rented out rooms to boarders
  • 159 adults were unmarried
  • 5% were disabled
  • 28% were children

Learn where they came from and where they went.

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

  • 165 migrated within the United States from 1935 to 1940
  • Most mothers originated from Mississippi
  • The most common mother tongue was Hungarian
  • 8% were first-generation Americans