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Find more Gillis 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 1,001 less people named Gillis 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 10,161 people named Gillis in the 1930 U.S. Census. In 1940, there were 10% less people named Gillis in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 9,160 people named Gillis were living in the United States. In a snapshot:

  • 1,764 adults were unmarried
  • 326 were disabled
  • They typically took 9 weeks of vacation a year
  • 40% owned their homes, valued on average at $3,161

Learn where they came from and where they went.

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

  • Most mothers originated from Canada English
  • Most fathers originated from Canada English
  • Most immigrants originated from Canada
  • 15% were born in foreign countries