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Find more Rozlowski 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 147 more people named Rozlowski 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 39 people named Rozlowski in the 1930 U.S. Census. In 1940, there were 377% more people named Rozlowski in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 186 people named Rozlowski were living in the United States. In a snapshot:

  • 61 were children
  • The youngest was 1 and the oldest was 74
  • 24% of women had paying jobs
  • 98% rented out rooms to boarders

Learn where they came from and where they went.

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

  • They most commonly lived in Maryland
  • 28 were first-generation Americans
  • 5% migrated within the United States from 1935 to 1940
  • 9 migrated within the United States from 1935 to 1940