Well, I don't think that if she were born 1832, that she was the daughter of Nathan Riley and Sarah Briggs as you specified. Nathan would be 56 years old then and Sarah of a similar age 46-56. While not impossible for him, it would be highly improbable for her. She's got children reported born as late as 1820 and as early as 1793, so she cannot be pushed much further forward. I suspect you're reading the same listing of persons and dates as I am.