Sithlord Piff
Superstar
Our genes don't get completely washed out ever. It can be 19 generations down the line and one of her descendants end up with a little kink to their hair. Look at the Spanish, Greeks, Italians and Portuguese they got some black blood several hundred years ago and they still have those genes appearing amongst them. Dark hair, dark eye color and the ability to tan. That's where the whole olive skin complexion phrase comes from. These are literally the only groups of cacs that can tan naturally.
He might not be completely washed, but its enough to classify him as White, and that's enough