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Find more Duplessis 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 25 more people named Duplessis 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 581 people named Duplessis in the 1930 U.S. Census. In 1940, there were 4% more people named Duplessis in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 606 people named Duplessis were living in the United States. In a snapshot:

  • The typical household was 3 people
  • They typically took 11 weeks of vacation a year
  • On average men worked 40 hours a week
  • The average annual income was $694

Learn where they came from and where they went.

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

  • Most fathers originated from New York
  • The most common mother tongue was French
  • Most immigrants originated from Canada
  • 10% were born in foreign countries