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Find more Decoster 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 53 less people named Decoster 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 301 people named Decoster in the 1930 U.S. Census. In 1940, there were 18% less people named Decoster in the United States. What was life like for them?

Picture the past for your ancestors.

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

  • 26% of adults were unmarried
  • 72 were children
  • For 117 females, Mildred was the most common name
  • 3% were disabled

Learn where they came from and where they went.

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

  • Most fathers originated from Belgium
  • They most commonly lived in Massachusetts
  • 23% were first-generation Americans
  • The most common mother tongue was Flemish