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Find more Mahaffy 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 93 less people named Mahaffy in the United States — and some of them are likely related to you.

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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 688 people named Mahaffy in the 1930 U.S. Census. In 1940, there were 14% less people named Mahaffy in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 595 people named Mahaffy were living in the United States. In a snapshot:

  • 185 were children
  • 15% of women had paying jobs
  • The youngest was 1 and the oldest was 91
  • 42 women had paying jobs

Learn where they came from and where they went.

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

  • They most commonly lived in Michigan
  • 20% migrated within the United States from 1935 to 1940
  • 124 were first-generation Americans
  • Most immigrants originated from Ireland