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Find more Guillaume 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 13 less people named Guillaume 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 358 people named Guillaume in the 1930 U.S. Census. In 1940, there were 4% less people named Guillaume in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 345 people named Guillaume were living in the United States. In a snapshot:

  • 41%, or 35 people, lived in homes they rented
  • 18 were disabled
  • 2% reported their race as other than white
  • Most common occupation was farm laborer

Learn where they came from and where they went.

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

  • 57 were born in foreign countries
  • The most common mother tongue was German
  • 119 were first-generation Americans
  • They most commonly lived in New York