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Find more Dieffenbach 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 the same number of people named Dieffenbach 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 336 people named Dieffenbach in the 1930 U.S. Census. In 1940, there were 0% more people named Dieffenbach in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 336 people named Dieffenbach were living in the United States. In a snapshot:

  • The average annual income was $1,263
  • For 178 females, Helen was the most common name
  • The typical household was 3 people
  • 63% owned their homes, valued on average at $4,458

Learn where they came from and where they went.

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

  • 7% were born in foreign countries
  • 23% were first-generation Americans
  • Most fathers originated from Germany
  • 20% migrated within the United States from 1935 to 1940