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Find more Theis 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 126 less people named Theis 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 3,270 people named Theis in the 1930 U.S. Census. In 1940, there were 4% less people named Theis in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 3,144 people named Theis were living in the United States. In a snapshot:

  • 950 were children
  • 30% were children
  • 97% rented out rooms to boarders
  • The youngest was less than a year and the oldest was 88

Learn where they came from and where they went.

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

  • They most commonly lived in Ohio
  • Most mothers originated from Minnesota
  • 530 migrated within the United States from 1935 to 1940
  • 1,201 were first-generation Americans