Find more Tellefsen 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 76 more people named Tellefsen in the United States — and some of them are likely related to you.
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 165 people named Tellefsen in the 1930 U.S. Census. In 1940, there were 46% more people named Tellefsen in the United States. What was life like for them?
In 1940, 241 people named Tellefsen were living in the United States. In a snapshot:
As Tellefsen families continued to grow, they left more tracks on the map: