The reason why I discussed this in terms of Copeland is because she's the first and only black female dancer to be officially recognised with a title above corps in one of the world's top companies. This is the problem one's hardly spoilt for choice in finding examples of ballerinas - there have been four black female dancers in all the histories of those companies combined.
As I recall, Nora Kimball was a soloist with ABT, Simon (someone correct me if I'm wrong here), if she was the only other, then Misty Copeland would be the second.
Having checked, yes, and here is a link to a review by Anna Kisselgoff of a performance she gave with ABT in 1985 as Myrtha in Giselle:
ONE of two major points of interest in maintaining the 19th-century ballet classics in the international repertory is the opportunity for dancers to perform and interpret time-honored roles. On this count, Cynthia Harvey, Ross Stretton, Michael Owen and Nora Kimball, a new soloist in American Ballet Theater, offered some excellent and dramatic moments in ''Giselle'' on Wednesday night at the Metropolitan Opera House.
Miss Kimball was a willowy Queen of the Wilis. Highly noticeable here in the past when she appeared with the Netherlands Dance Theater, she again showed off her natural dramatic and commanding presence. This first view of her in a classical role revealed a brilliant and exciting jump, some need to smooth out transitional steps and an always interesting dancer.