You've got family at Ancestry.

Find more Sullivan 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 9,537 less people named Sullivan 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 131,486 people named Sullivan in the 1930 U.S. Census. In 1940, there were 7% less people named Sullivan in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 121,949 people named Sullivan were living in the United States. In a snapshot:

  • Although 51% were female, the most common name for males was John
  • 6% were disabled
  • The youngest was less than a year and the oldest was 104
  • They typically took 9 weeks of vacation a year

Learn where they came from and where they went.

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

  • 32% were first-generation Americans
  • The most common mother tongue was German
  • 42,368 were first-generation Americans
  • Most immigrants originated from Ireland