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Find more Krolak 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 45 more people named Krolak 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 226 people named Krolak in the 1930 U.S. Census. In 1940, there were 20% more people named Krolak in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 271 people named Krolak were living in the United States. In a snapshot:

  • They typically took 9 weeks of vacation a year
  • 33 owned their homes, valued on average at $3,126
  • 51% owned their homes, valued on average at $3,126
  • 7% were disabled

Learn where they came from and where they went.

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

  • Most immigrants originated from Poland
  • 59% were first-generation Americans
  • 27% were born in foreign countries
  • Most fathers originated from Austria