【NYTimes】With a Simple DNA Test, Family Histories ...

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Widespread DNA testing has shed light on the ancestry of millions of Americans. But these services have limitations, and the results can be uncertain. Bob Hutchinson at his home in Pacifica, Calif. He learned of his mixed-race ancestory through a genetic test, and discovered relatives. Bob Hutchinson’s mother told him and his siblings almost nothing about her family, no matter how often they aske d. “She was good at brushing people off,” said Mr. Hutchinson, 60. Growing up, there were no photos of his mother as a child in the home, or of her own parents. She said that she was an only child, that her parents were dead. Her heritage, she claimed, was Italian and Swedish. Mr. Hutchinson suspected there was more to the story. Then his sister-in-law, digging into the family past, found their mother’s childhood home listed in a 1930 census. The family had lived in Montcl ………………………………