In the case of her parents, I am sure they were indeed predominately European. But with a considerable amount of SSA admixture shared between the both of them and carried through generations and recombined, it was only an eventuality that a child would be born with a phenotype that reflected the admixture. This is what I was trying to explain to the other New Worlders before. Sure, you might not notice anything this generation or in the next one. But if the admixture is still cycling around, eventually someone may pop up looking a bit different. It's a mistake to think that one given admixture level will universally result in one given look. There are averages and possibilities, but these can be quite tricky over the course of many generations should the admixture still be constant -- multigenerational mixing. The Laing example is case in point.