You've got family at Ancestry.

Find more Olausen 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 17 more people named Olausen 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 54 people named Olausen in the 1930 U.S. Census. In 1940, there were 31% more people named Olausen in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 71 people named Olausen were living in the United States. In a snapshot:

  • For 31 females, Anna was the most common name
  • 26% of women had paying jobs
  • 8 women had paying jobs
  • Although 44% were female, the most common name for males was George

Learn where they came from and where they went.

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

  • 30 were born in foreign countries
  • 10% migrated within the United States from 1935 to 1940
  • 22 were first-generation Americans
  • 41% were first-generation Americans