Re: descendents of John Gregg (1690) and Nancy Ann Wood

John,
Thanks for the reply, I do not see how my ggandmother, Margaret D. Gragg, daughter of William Gragg and Elizabeth Cunningham; Wm son of John Gragg could have a different last name.My mother talked about the Graggs, Vails, Garrisons,Scudder and Parrish families. Can you explain this further.
My John Gragg was born 1800 married Sarah Holt Feb. 4, 1821.Billie