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Find more Hollrock 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 the same number of people named Hollrock 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 7 people named Hollrock in the 1930 U.S. Census. In 1940, there were 0% more people named Hollrock in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 7 people named Hollrock were living in the United States. In a snapshot:

  • The youngest was 19 and the oldest was 57
  • The average annual income was $2,433
  • 1 woman had paying job
  • Although 43% were female, the most common name for males was George

Learn where they came from and where they went.

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

  • 4 were first-generation Americans
  • 57% were first-generation Americans
  • They most commonly lived in New York