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Find more Guiff 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 6 less people named Guiff 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 47 people named Guiff in the 1930 U.S. Census. In 1940, there were 13% less people named Guiff in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 41 people named Guiff were living in the United States. In a snapshot:

  • The youngest was 2 and the oldest was 76
  • 13% of adults were unmarried
  • The average annual income was $1,086
  • 4 adults were unmarried

Learn where they came from and where they went.

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

  • 8 were first-generation Americans
  • They most commonly lived in Illinois
  • 17% were first-generation Americans
  • 14 migrated within the United States from 1935 to 1940