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Find more Jahnke 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 598 less people named Jahnke 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 1,846 people named Jahnke in the 1930 U.S. Census. In 1940, there were 32% less people named Jahnke in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 1,248 people named Jahnke were living in the United States. In a snapshot:

  • 208 adults were unmarried
  • The youngest was less than a year and the oldest was 87
  • 98% rented out rooms to boarders
  • 46%, or 142 people, lived in homes they rented

Learn where they came from and where they went.

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

  • Most mothers originated from Germany
  • 816 were first-generation Americans
  • 221 migrated within the United States from 1935 to 1940
  • 316 were born in foreign countries