You've got family at Ancestry.

Find more Seiff 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 42 more people named Seiff 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 68 people named Seiff in the 1930 U.S. Census. In 1940, there were 62% more people named Seiff in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 110 people named Seiff were living in the United States. In a snapshot:

  • 27% were children
  • 30 were children
  • On average men worked 40 hours a week
  • 45% owned their homes, valued on average at $4,692

Learn where they came from and where they went.

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

  • Most mothers originated from New York
  • They most commonly lived in New Jersey
  • Most immigrants originated from Russia
  • 11 migrated within the United States from 1935 to 1940