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Find more Williamsen 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 117 less people named Williamsen 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 415 people named Williamsen in the 1930 U.S. Census. In 1940, there were 28% less people named Williamsen in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 298 people named Williamsen were living in the United States. In a snapshot:

  • 13 were disabled
  • 296 rented out rooms to boarders
  • The youngest was less than a year and the oldest was 86
  • 23 women had paying jobs

Learn where they came from and where they went.

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

  • The most common mother tongue was Danish
  • Most immigrants originated from Norway
  • 23% were first-generation Americans
  • 57 migrated within the United States from 1935 to 1940