Actually, you’re right and wrong. Dingell pere and son have held a seat in Congress since 1933, but the district isn’t the same. When Dingell, Sr. first won a formerly historically GOP district in the FDR ‘32 landslide, it was one of Detroit’s city districts (for which there once used to be several). Dingell, Sr. essentially represented that same district until his death in 1955. When Dingell, Jr. won his dad’s seat in the ‘55 special, he still represented Detroit, but with the gargantuan demographics shift and massive shrinkage of the population beginning at roughly the same time he won the seat, his district moved westward away from Detroit proper and now is Ann Arbor-based. The district he originally represented no longer exists.
His seatmate, John Conyers, has also seen his district drastically expanded and augmented since he was elected in 1964 (when Detroit was still viable and had twice as many people as it does now). Conyers has a very unique distinction as a member of Congress a lot of folks don’t know about. More people have fled the district he has represented for 44 years than any other in the history of the country, which I estimate to be in excess of a half-million people. People wonder why Conyers hasn’t been voted out, but his constituents (the smart ones) have voted in another way - with their feet. When a half-million people flee the districts you’ve represented, it’s very telling.
Likewise the population of Detroit has been cut in half from what it was in the 50s (I think they went from 1.5 million to 700,000 now), yet they still maintain two safe black congressional districts from Detroit (one of whom is the mother of disgraced former Detriot mayor Kwame Kilpatrick, and the other Detriot Congressman, Conyers, has managed to stick around since 1964. I'd love to see how they redesigned his district over the years).
Just goes to show you how RAT voters in the urban areas, no matter what race they are, have no shame when it comes to electing crooks to lifetime positions. I'm sure it's just as bad in Nashville and Memphis (or Atlanta for that matter). What a lot of freepers don't get is that America isn't so much divided between northern and southern culture as it is between urban and rural.
As for Dingell I'm amazed he's still in office at the age of 83 and has no plans to retire anytime soon. Alot of these Washington insiders won't leave office until they're carried out feet first. When John Dingell is finally out of office, I expect the "family seat" to be bequeathed to his son Chris Dingell without a murmur of protest from his gullible constituents.