Generally black hair is a type of animal strength and seems as if some strong expression of the forces of a strong nature; but in this case there could be no such thought.
There were refinement and high breeding; and though there was no suggestion of weakness, any sense of power there was, was rather spiritual than animal.

The whole harmony of her being seemed complete.
Carriage, figure, hair, eyes; the mobile, full mouth, whose scarlet lips and white teeth seemed to light up the lower part of the face--as the eyes did the upper; the wide sweep of the jaw from chin to ear; the long, fine fingers; the hand which seemed to move from the wrist as though it had a sentience of its own.

All these perfections went to make up a personality that dominated either by its grace, its sweetness, its beauty, or its charm.
Nurse Kennedy, on the other hand, was rather under than over a woman's average height.

She was firm and thickset, with full limbs and broad, strong, capable hands.

Her colour was in the general effect that of an autumn leaf.