1955_Michigan's_15th_congressional_district_special_election
On December 13, 1955, voters in Michigan's 15th congressional district elected Democrat John Dingell to the U.S. House of Representatives. His father, John Dingell Sr., was the incumbent and died September 19, 1955. The younger Dingell was the longest-serving representative and went on to elect twenty-nine full terms until he retired in 2014.