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Find more Mcilwain 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 33 less people named Mcilwain 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 1,037 people named Mcilwain in the 1930 U.S. Census. In 1940, there were 3% less people named Mcilwain in the United States. What was life like for them?

Picture the past for your ancestors.

In 1940, 1,004 people named Mcilwain were living in the United States. In a snapshot:

  • 15% of women had paying jobs
  • The youngest was less than a year and the oldest was 91
  • 165 reported their race as other than white
  • 40 were disabled

Learn where they came from and where they went.

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

  • 15% migrated within the United States from 1935 to 1940
  • 115 were first-generation Americans
  • 11% were first-generation Americans
  • Most fathers originated from Alabama