You've got family at Ancestry.

Find more Jefferson 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 1,663 more people named Jefferson in the United States — and some of them are likely related to you.

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Create, build, and explore your family tree.

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 20,856 people named Jefferson in the 1930 U.S. Census. In 1940, there were 8% more people named Jefferson in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 22,519 people named Jefferson were living in the United States. In a snapshot:

  • 21% of adults were unmarried
  • On average men worked 42 hours a week
  • 6% were disabled
  • They typically took 11 weeks of vacation a year

Learn where they came from and where they went.

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

  • Most fathers originated from Virginia
  • Most immigrants originated from England
  • The most common mother tongue was French
  • 4,118 migrated within the United States from 1935 to 1940