There may be census records, birth, marriage and death records galore, in many different online sources, but something you won't see much are digitized images of wills and probate records. In one of the many boxes at the North Carolina State Archives is a file folder for one such will. James Oliver, Revolutionary War veteran, wrote his will in 1829. In it he named his beloved wife Susannah, along with his children: John Oliver, Polly (who married William Goff), Susannah (who married James Lumbrick), Sally (who married William Shepherd), Samuel, Elizabeth, and Nancy (who married Thomas Barker). In addition, one of the witnesses to the will was Peter Oliver.
You won't find this online!