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You've got family at Ancestry.

Find more Slezak 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 100 more people named Slezak 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 975 people named Slezak in the 1930 U.S. Census. In 1940, there were 10% more people named Slezak in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 1,075 people named Slezak were living in the United States. In a snapshot:

  • 1,036 rented out rooms to boarders
  • Although 49% were female, the most common name for males was Frank
  • The youngest was less than a year and the oldest was 84
  • The typical household was 3 people

Learn where they came from and where they went.

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

  • 110 migrated within the United States from 1935 to 1940
  • 55% were first-generation Americans
  • 539 were first-generation Americans
  • The most common mother tongue was Slovak