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Find more Duncans 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 217 more people named Duncans 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 142 people named Duncans in the 1930 U.S. Census. In 1940, there were 153% more people named Duncans in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 359 people named Duncans were living in the United States. In a snapshot:

  • Most common occupation was carpenter
  • 21 were disabled
  • 329 rented out rooms to boarders
  • The typical household was 2 people

Learn where they came from and where they went.

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

  • They most commonly lived in Illinois
  • The most common mother tongue was French
  • 66 migrated within the United States from 1935 to 1940
  • Most fathers originated from Georgia