from cleveland. their patriarch, harry levy, the bald guy there, is my great- grandfather. and in the spring of 1930, one of his four daughters we don t know which gave birth out of wedlock to my mother. davina, of harry s legitimate grandchildren says no one ever knew about this baby. it would be scandalous, really, in those days, for this family. reporter: my mom died knowing none of this. she was raised by another couple no formal adoption, no paper trail. so if not for d.n.a. testing, my ancestry would have remained a secret. a recent survey showed about a quarter of the people who take these tests find some kind of surprising result, or in my case, two surprising results. the test was more definitive regarding my grandfather, an irish catholic railroad worker named frank black. i m steve. this is his other daughter, carol.