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Find more Froncak 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 5 less people named Froncak 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 20 people named Froncak in the 1930 U.S. Census. In 1940, there were 25% less people named Froncak in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 15 people named Froncak were living in the United States. In a snapshot:

  • 5 adults were unmarried
  • The average annual income was $705
  • Although 53% were female, the most common name for males was Frank
  • For 8 females, Mary was the most common name

Learn where they came from and where they went.

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

  • Most mothers originated from Poland
  • 35% were born in foreign countries
  • 65% were first-generation Americans
  • 7 were born in foreign countries