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Find more Olaus 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 3 less people named Olaus 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 9 people named Olaus in the 1930 U.S. Census. In 1940, there were 33% less people named Olaus in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 6 people named Olaus were living in the United States. In a snapshot:

  • The typical household was 3 people
  • 67% were children
  • 100%, or 1 person, lived in homes they rented
  • The average annual income was $1,916

Learn where they came from and where they went.

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

  • Most immigrants originated from Norway
  • 5 were born in foreign countries
  • 56% were born in foreign countries
  • They most commonly lived in New York