You've got family at Ancestry.

Find more Denning 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 115 less people named Denning 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 4,079 people named Denning in the 1930 U.S. Census. In 1940, there were 3% less people named Denning in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 3,964 people named Denning were living in the United States. In a snapshot:

  • For 1,973 females, Helen was the most common name
  • 4% reported their race as other than white
  • The youngest was less than a year and the oldest was 97
  • 447 owned their homes, valued on average at $2,980

Learn where they came from and where they went.

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

  • 180 were born in foreign countries
  • 718 were first-generation Americans
  • 18% were first-generation Americans
  • Most fathers originated from Tennessee