The world's largest online family tree
OneGreatFamily is the world's largest family tree, built by people all over the world. Millions of names, thousands of family trees, all linked together into one great family. Discover yours today.
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Leap from hundreds to thousands of names on your family tree. Discover people who have eluded you for years.
Easy family research

This is the effortless way to do family research. You provide a little family history, and we take it from there, merging and matching the data for you.

Find your missing ancestors

OneGreatFamily.com has been a tremendous help to me in my family research...I have discovered several dates that had eluded me, as well as finding some unknown ancestors that I didn't know existed. I also found 2nd & 3rd cousins that I never knew prior to my experience with OneGreatFamily.

Gwen Reid Adams

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