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Find more Nillsen 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 102 more people named Nillsen 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 35 people named Nillsen in the 1930 U.S. Census. In 1940, there were 291% more people named Nillsen in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 137 people named Nillsen were living in the United States. In a snapshot:

  • The typical household was 3 people
  • 3% were disabled
  • For 65 females, Lillian was the most common name
  • Although 47% were female, the most common name for males was George

Learn where they came from and where they went.

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

  • Most fathers originated from Denmark
  • The most common mother tongue was Danish
  • 21 were born in foreign countries
  • 34% were first-generation Americans