Complex sentence: Forrester served as Dean of the Vanderbilt Law School in Nashville, Tennessee from 1949 to 1952, at Tulane from 1952 to 1963, and at Cornell University Law School in Ithaca, New York from 1963 to 1973.
Split into simpler sentences: Forrester served as Dean of the Vanderbilt Law School in Nashville, Tennessee from 1949 to 1952. He left to serve as Dean of the Cornell University Law School in Ithaca, New York from 1963 to 1973.