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Find more Dettman 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 138 more people named Dettman in the United States — and some of them are likely related to you.

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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 1,010 people named Dettman in the 1930 U.S. Census. In 1940, there were 14% more people named Dettman in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 1,148 people named Dettman were living in the United States. In a snapshot:

  • Although 49% were female, the most common name for males was William
  • They typically took 7 weeks of vacation a year
  • 92 women had paying jobs
  • 43 were disabled

Learn where they came from and where they went.

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

  • 449 were first-generation Americans
  • Most immigrants originated from Germany
  • 14% migrated within the United States from 1935 to 1940
  • The most common mother tongue was German