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Find more Mrozowski 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 62 more people named Mrozowski 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 139 people named Mrozowski in the 1930 U.S. Census. In 1940, there were 45% more people named Mrozowski in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 201 people named Mrozowski were living in the United States. In a snapshot:

  • The average annual income was $1,055
  • 20 owned their homes, valued on average at $5,501
  • 194 rented out rooms to boarders
  • 62 were children

Learn where they came from and where they went.

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

  • 27% were born in foreign countries
  • 70% were first-generation Americans
  • 21 migrated within the United States from 1935 to 1940
  • They most commonly lived in Pennsylvania