You've got family at Ancestry.

Find more Cogan 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 20 more people named Cogan 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 2,131 people named Cogan in the 1930 U.S. Census. In 1940, there were 1% more person named Cogan in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 2,151 people named Cogan were living in the United States. In a snapshot:

  • 233 women had paying jobs
  • 1% reported their race as other than white
  • 27% were children
  • 2,073 rented out rooms to boarders

Learn where they came from and where they went.

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

  • 14% migrated within the United States from 1935 to 1940
  • 693 were first-generation Americans
  • Most mothers originated from Pennsylvania
  • Most immigrants originated from Russia