Chester County, Pennsylvania
Chester was an original county of Pennsylvania, one of the largest until Dauphin, Lancaster and Delaware counties were split off. Because the boundaries mainly did not follow rivers or other natural dividers, translating verbal boundaries into actual lines was highly contentious.
"In the Philadelphia suburbs, set in an autumnal landscape so ripe and misty that it might have been painted by Constable....lives an oligarchy more compact, more tightly and more complacently entrenched than any in the United States, with the possible exception of that along the North Shore of Long Island....The Main Line lives on the Main Line all year around...It is one of the few places in the country where it doesn't matter on what side of the tracks you are. These are very superior tracks.....What does the Main Line believe in most? Privilege."
John Gunther -- Inside U.S.A.