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Find more Ostby 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 8 less people named Ostby 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 514 people named Ostby in the 1930 U.S. Census. In 1940, there were 2% less people named Ostby in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 506 people named Ostby were living in the United States. In a snapshot:

  • For 245 females, Emma was the most common name
  • 12% of women had paying jobs
  • 58 owned their homes, valued on average at $1,971
  • The average annual income was $953

Learn where they came from and where they went.

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

  • 43% were first-generation Americans
  • 25% migrated within the United States from 1935 to 1940
  • 117 were born in foreign countries
  • 23% were born in foreign countries