Actually not strange at all. There were many mixed-race people living in England by that time; most were the offspring of the English men who went to Jamaica to run sugar plantations. They would move an island woman into the house to serve as a wife.
When the children came of age they would be sent to England - the boys to get an education, the girls to get married.
In America, it was about race and not social class.
In England, it was about social class and not race. The children of wealthy sugar planters would do fine so yes, you might see a girl like this (though usually they would be older.)
So this is actually not 'incorrect' at all. It's just history, my frens. You can research it yourself. I did.
Actually not strange at all. There were many mixed-race people living in England by that time; most were the offspring of the English men who went to Jamaica to run sugar plantations. They would move an island woman into the house to serve as a wife.
When the children came of age they would be sent to England - the boys to get an education, the girls to get married.
In America, it was about race and not social class.
In England, it was about social class and not race.
So this is actually not 'incorrect' at all.