I'm hoping i turn out to be a Rockefeller. Lol. Seriously, my other 3 grandparents, I was able to easily go back to the 1500's. But my names sake part I can get to 1819 only with 100% certainty, well, provided one of the granny's didn't step outside the marriage. Lol
Based on pics though, I feel confident I'm a full fledged gray but getting stuck hurts. I will say this, my gggrandfather was born in 1819 and his dad died before 1840 because his mom is shown as the head of family and of course thats more clear in the 1850 census. So going back is very difficult.