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Find more Cosmas 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 47 more people named Cosmas 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 68 people named Cosmas in the 1930 U.S. Census. In 1940, there were 69% more people named Cosmas in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 115 people named Cosmas were living in the United States. In a snapshot:

  • 3 were disabled
  • Most common occupation was clerk
  • 28 were children
  • They typically took 9 weeks of vacation a year

Learn where they came from and where they went.

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

  • The most common mother tongue was Albanian
  • They most commonly lived in Illinois
  • Most immigrants originated from Greece
  • 21 migrated within the United States from 1935 to 1940