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Find more Sobieski 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 175 more people named Sobieski 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 472 people named Sobieski in the 1930 U.S. Census. In 1940, there were 37% more people named Sobieski in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 647 people named Sobieski were living in the United States. In a snapshot:

  • For 322 females, Helen was the most common name
  • Although 50% were female, the most common name for males was Joseph
  • 98% rented out rooms to boarders
  • The youngest was less than a year and the oldest was 82

Learn where they came from and where they went.

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

  • 55% were first-generation Americans
  • 260 were first-generation Americans
  • 27 migrated within the United States from 1935 to 1940
  • 133 were born in foreign countries