Tulsa, Okla. • When about 5.2 million people identified themselves as having American Indian or Alaskan Native ancestry on 2010 U.S. Census forms, some found the tally curiously low.
The apparent undercount had nothing to do with how the data was collected. In fact, millions of people across the country didn't realize they had American Indian blood, so surveys went unmarked.
To help people with Indian blood trace their roots, Utah-based genealogy website Ancestry.com has partnered with the Oklahoma Historical Society to add more than 3.2 million American Indian historical records and images to its website.
Ancestry.com contains billions of records — around 2 million records are added to the site every day — and has so far created more than 60 million family trees containing more than 6 billion profiles, the company says.