Bettijane Sills, is professor of dance at Purchase College, State University of New York. She danced with New York City Ballet from 1961 to 1972, first as a corps member and later ...ver másBettijane Sills, is professor of dance at Purchase College, State University of New York. She danced with New York City Ballet from 1961 to 1972, first as a corps member and later as a soloist.ver menos