 In 1950, Jennings was defeated in primary by former district attorney Howard Baker, Sr.. Baker served for thirteen years until his death in 1964, where he was succeeded by his widow Irene who did not seek re-election.In the 1964 election, the district chose Knoxville mayor John Duncan, Sr.. Duncan served for 23 years before his death in summer 1988.Following Duncan's death, the district elected his son, Jimmy.