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Find more Alff 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 23 more people named Alff 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 164 people named Alff in the 1930 U.S. Census. In 1940, there were 14% more people named Alff in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 187 people named Alff were living in the United States. In a snapshot:

  • For 92 females, Mary was the most common name
  • 99% rented out rooms to boarders
  • 23% of adults were unmarried
  • 22% were children

Learn where they came from and where they went.

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

  • 43% were first-generation Americans
  • 22% migrated within the United States from 1935 to 1940
  • Most fathers originated from New York
  • Most mothers originated from New York