You've got family at Ancestry.

Find more Rolf 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 106 less people named Rolf in the United States — and some of them are likely related to you.

Start a tree and connect with your family.

Gender

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 1,600 people named Rolf in the 1930 U.S. Census. In 1940, there were 7% less people named Rolf in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 1,494 people named Rolf were living in the United States. In a snapshot:

  • 276 adults were unmarried
  • 2% reported their race as other than white
  • 96% rented out rooms to boarders
  • The average annual income was $1,041

Learn where they came from and where they went.

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

  • Most mothers originated from Ohio
  • 533 were first-generation Americans
  • 256 migrated within the United States from 1935 to 1940
  • 10% were born in foreign countries