You've got family at Ancestry.

Find more Kelly 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 6,800 more people named Kelly 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 134,929 people named Kelly in the 1930 U.S. Census. In 1940, there were 5% more people named Kelly in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 141,729 people named Kelly were living in the United States. In a snapshot:

  • For 71,574 females, Helen was the most common name
  • 29% of adults were unmarried
  • Most common occupation was farmer
  • 13,421 owned their homes, valued on average at $3,547

Learn where they came from and where they went.

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

  • 13,286 were born in foreign countries
  • Most fathers originated from New York
  • They most commonly lived in Illinois
  • 15% migrated within the United States from 1935 to 1940