You've got family at Ancestry.

Find more Mac 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 221 more people named Mac 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 351 people named Mac in the 1930 U.S. Census. In 1940, there were 63% more people named Mac in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 572 people named Mac were living in the United States. In a snapshot:

  • 24% reported their race as other than white
  • 7% were disabled
  • 33% owned their homes, valued on average at $3,151
  • 521 rented out rooms to boarders

Learn where they came from and where they went.

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

  • 118 were first-generation Americans
  • The most common mother tongue was Polish
  • 21% were born in foreign countries
  • 90 migrated within the United States from 1935 to 1940