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Find more Cosby 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 1,109 less people named Cosby 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 4,652 people named Cosby in the 1930 U.S. Census. In 1940, there were 24% less people named Cosby in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 3,543 people named Cosby were living in the United States. In a snapshot:

  • 1,214 reported their race as other than white
  • 22% of adults were unmarried
  • The typical household was 3 people
  • 32% were children

Learn where they came from and where they went.

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

  • 19% migrated within the United States from 1935 to 1940
  • Most fathers originated from Georgia
  • Most mothers originated from Georgia
  • Most immigrants originated from England