If I go back five generations on my dad's side four of my grandparents were born and lived there entire lives in Denmark, two were born in England, one in Ireland. It was their kids that came to America.
One of those grandparents from five generations back (my wild card) was Pennsylvania Dutch with an old American blood line that goes back all the way to the Mayflower.
Of this generation of eight paternal grandparents, thanks to the work of other relatives, I know all their birth and death dates, when and where they were born and married, their children, and lines of decent.
My Dad had his DNA tested about six months ago and it came back almost a perfect match to this known bloodline. A little bit of French, which was unexpected, probably from our Dutch "Heinz 57".
No Indian blood, but when I looked back another two generations in that blood line I did have a set of grandparents who lived on the western Pennsylvania frontier who had their barn and cabin burned to the ground by an Indian raiding party, sometime in the 1760's, I think.
They survived by retreating, along with their children and neighbors, to a fireproof stone block house which was a short distance away, built and maintained by the community precisely for that purpose.
Faimly lore says all the exitment and commotion caused my grandmother, who was 9 months pregnant, to go into labor precisely as the Indians were attacking and had the settlers under siege and lock in their bunker. Parts of that block house survive to this day.