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Find more Lefko 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 21 more people named Lefko 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 137 people named Lefko in the 1930 U.S. Census. In 1940, there were 15% more people named Lefko in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 158 people named Lefko were living in the United States. In a snapshot:

  • 35% of adults were unmarried
  • 147 rented out rooms to boarders
  • 22 women had paying jobs
  • For 70 females, Katherine was the most common name

Learn where they came from and where they went.

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

  • The most common mother tongue was Jewish
  • 11 migrated within the United States from 1935 to 1940
  • 7% migrated within the United States from 1935 to 1940
  • 74 were first-generation Americans