quadroon

There were slow boys and bashful boys, feeble boys and riotous boys, boys that lisped and boys that stuttered, one or two lame ones, and a merry little quadroon, who could not be taken in elsewhere, but who was welcome to the ‘Bhaer-garten’, though some people predicted that his admission would ruin the school.

Diana was a black quadroon, her father being a blackfellow.

He was the father of four quadroons who were regarded as half-castes because the lighter part of their mother's blood was Asiatic, and he was only too well aware of what their future would be should he desert them.