Complex sentence: She obtained her Ph.D. from the University of Maryland at College Park, Maryland, while as "Evelyn Davis" a professor and director of the music education program at Oral Roberts University in Tulsa from 1965 to 1980, when she became professor emeriti.
Split into simpler sentences: She obtained her Ph.D. from the University of Maryland at College Park, Maryland. As "Evelyn Davis," she was a professor and director of the music education program at Oral Roberts University in Tulsa from 1965 to 1980, when she became professor emeriti.