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Find more Petroff 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 103 more people named Petroff 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 1,086 people named Petroff in the 1930 U.S. Census. In 1940, there were 9% more people named Petroff in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 1,189 people named Petroff were living in the United States. In a snapshot:

  • 101 women had paying jobs
  • They typically took 10 weeks of vacation a year
  • On average men worked 41 hours a week
  • 2% were disabled

Learn where they came from and where they went.

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

  • 12% migrated within the United States from 1935 to 1940
  • The most common mother tongue was Bulgarian
  • Most immigrants originated from Bulgaria
  • 474 were first-generation Americans