John David Dingell, Jr. (born July 8, 1926) is the U.S. Representative for Michigan's 15th congressional district, serving since 1955 (his district was first in western Detroit but has successively moved further into that city's western suburbs). He is a member of the Democratic Party. His district includes most of Detroit's western suburbs such as the western portion of Dearborn, Romulus, Ann Arbor/Ypsilanti area and all of the Monroe/Dundee area.
He is currently the Dean of the U.S. House of Representatives. He is also the longest-currently-serving member of Congress, the longest to serve exclusively in the House ever, and the third longest-serving member of Congress ever.
Dingell was born in Colorado Springs, Colorado, and is of Polish and Scots-Irish descent. His father's original surname had been Dzieglewicz, meaning, roughly, 'blacksmith.' John D. Dingell, Sr. changed his name for his campaign for office with the slogan 'Ring (in) with Dingell.' Dingell's mother was Grace Bigler Dingell.