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Find more Martenson 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 379 more people named Martenson 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 596 people named Martenson in the 1930 U.S. Census. In 1940, there were 64% more people named Martenson in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 975 people named Martenson were living in the United States. In a snapshot:

  • The average annual income was $1,158
  • 5 reported their race as other than white
  • 95% rented out rooms to boarders
  • 30 were disabled

Learn where they came from and where they went.

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

  • 32% were born in foreign countries
  • 268 were first-generation Americans
  • 131 migrated within the United States from 1935 to 1940
  • The most common mother tongue was Danish