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Find more Kolkowski 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 29 more people named Kolkowski in the United States — and some of them are likely related to you.

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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 45 people named Kolkowski in the 1930 U.S. Census. In 1940, there were 64% more people named Kolkowski in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 74 people named Kolkowski were living in the United States. In a snapshot:

  • 14 were children
  • 19% were children
  • They typically took 13 weeks of vacation a year
  • 22 adults were unmarried

Learn where they came from and where they went.

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

  • They most commonly lived in New York
  • Most mothers originated from Poland
  • Most immigrants originated from Poland
  • The most common mother tongue was Polish