The connection between Marian Anderson and Georgia O'keeffe was artist Beauford Delaney.
Explanation:
Beauford Delaney was an established artist during the Brooklyn Renaissance with his paintings of modern New York life and paintings of famous black artists, which he admired. Among these artists was the singer Marian Anderson, whose Delaney made many portraits, which (together with others) caught the attention of Georgia O'keeffe, who was also an artist and admired Delaney's work in a grand way.
