My maternal grandfather was William Pickett, born 1847 in Chatham County NC. According to his death certificate his mother was Laura Dafford, born in NC (probably Chatham County).
Laura Dafford married John Pickett, the marriage bond signed 13 Sept 1840 In Orange Co., NC. The census records show them living in Chatham County, NC. Laura Dafford was born around 1824. A William Dafford is shown as head of the household in Chatham County census records, beginning in 1810. The census records also show that he had a female child, age 5-10, in the 1830 census, which fits the description of the age of Laura Dafford.
If anyone has more definitive information about Dafford family ties in Chatham County NC, I would appreciate hearing from you.