Throughout most of her 86 years, Florence Hand had been haunted by "floating dreams" that always revealed "somebody in the room besides me," she said. The mystery had taken on legendary status in the family when Hand's granddaughter, Trisha Hand, confronted it. She dove into the millions of U.S. Census documents widely available at Ancestry.com and other genealogical research websites.
In turns out Hand did, indeed, have a brother: Albert Taber, who was raised by their grandfather. When Hand found him, he was 87 and living in Florida. Last summer, for the first time in 85 years, brother and sister reunited during an emotional meeting at a Chicago airport.
You can read more in an article by Thom Patterson published by CNN at http://edition.cnn.com/2011/LIVING/01/11/census.family.research/index.html?hpt=C1
My thanks to Frank Henderson for telling me about this story.