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Find more Mccay 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 6,416 more people named Mccay 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 2,889 people named Mccay in the 1930 U.S. Census. In 1940, there were 222% more people named Mccay in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 9,305 people named Mccay were living in the United States. In a snapshot:

  • 22% of adults were unmarried
  • 1,385 adults were unmarried
  • The average annual income was $791
  • 3,144 were children

Learn where they came from and where they went.

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

  • Most fathers originated from Georgia
  • Most mothers originated from Georgia
  • 2% were born in foreign countries
  • They most commonly lived in Pennsylvania