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Find more Roc 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 143 more people named Roc 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 33 people named Roc in the 1930 U.S. Census. In 1940, there were 433% more people named Roc in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 176 people named Roc were living in the United States. In a snapshot:

  • 9% were disabled
  • The typical household was 3 people
  • 26% of adults were unmarried
  • 15 owned their homes, valued on average at $2,923

Learn where they came from and where they went.

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

  • Most immigrants originated from Poland
  • The most common mother tongue was Polish
  • Most fathers originated from Maryland
  • 5 were born in foreign countries