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Find more Kaczmarek 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 698 less people named Kaczmarek 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 1,524 people named Kaczmarek in the 1930 U.S. Census. In 1940, there were 46% less people named Kaczmarek in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 826 people named Kaczmarek were living in the United States. In a snapshot:

  • 96 owned their homes, valued on average at $2,845
  • The youngest was less than a year and the oldest was 83
  • On average men worked 39 hours a week
  • 170 adults were unmarried

Learn where they came from and where they went.

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

  • 372 were born in foreign countries
  • 901 were first-generation Americans
  • 36 migrated within the United States from 1935 to 1940
  • Most immigrants originated from Poland