Complex sentence: From 1951 to 1993, Mr. Kupferman was on the faculty of Sarah Lawrence College in Bronxville, New York; serving as Chairman of the Music Department for five terms.
Split into simpler sentences: From 1951 to 1993, Mr. Kupferman was on the faculty of Sarah Lawrence College in Bronxville, New York. He also served as Chairman of the Music Department for five terms.