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Find more Blais 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 1,047 more people named Blais in the United States — and some of them are likely related to you.

Start a tree and connect with your family.


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 2,091 people named Blais in the 1930 U.S. Census. In 1940, there were 50% more people named Blais in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 3,138 people named Blais were living in the United States. In a snapshot:

  • 32% were children
  • 37% owned their homes, valued on average at $3,114
  • They typically took 10 weeks of vacation a year
  • 97% rented out rooms to boarders

Learn where they came from and where they went.

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

  • Most mothers originated from Canada
  • 31% were born in foreign countries
  • The most common mother tongue was French
  • 365 migrated within the United States from 1935 to 1940