You've got family at Ancestry.

Find more Lerosen 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 2 more people named Lerosen 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 10 people named Lerosen in the 1930 U.S. Census. In 1940, there were 20% more people named Lerosen in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 12 people named Lerosen were living in the United States. In a snapshot:

  • 50%, or 1 person, lived in homes they rented
  • 25% of adults were unmarried
  • The youngest was 1 and the oldest was 60
  • 10 rented out rooms to boarders

Learn where they came from and where they went.

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

  • 1 were born in foreign countries
  • Most immigrants originated from England
  • 20% were first-generation Americans
  • 17% migrated within the United States from 1935 to 1940