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Find more Sweeny 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 88 less people named Sweeny 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 3,106 people named Sweeny in the 1930 U.S. Census. In 1940, there were 3% less people named Sweeny in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 3,018 people named Sweeny were living in the United States. In a snapshot:

  • The youngest was less than a year and the oldest was 92
  • 6% were disabled
  • On average men worked 41 hours a week
  • 32% of adults were unmarried

Learn where they came from and where they went.

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

  • 25% were first-generation Americans
  • The most common mother tongue was Gaelic
  • Most immigrants originated from Ireland
  • Most mothers originated from Pennsylvania