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Find more Slowikowski 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 49 more people named Slowikowski 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 141 people named Slowikowski in the 1930 U.S. Census. In 1940, there were 35% more people named Slowikowski in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 190 people named Slowikowski were living in the United States. In a snapshot:

  • 27% were children
  • 5% were disabled
  • For 93 females, Josephine was the most common name
  • 98% rented out rooms to boarders

Learn where they came from and where they went.

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

  • They most commonly lived in Illinois
  • The most common mother tongue was Polish
  • 60% were first-generation Americans
  • Most mothers originated from Maryland