Haddonfield, borough (1990 pop. 11,628), Camden co., SE N.J., a residential suburb of Camden and Philadelphia; settled c.1713, inc. 1875. Of interest are Indian King Tavern (1750), where the first state legislature met in 1777, and the Haddonfield historical society. The site of the first nearly complete dinosaur fossil ever found (1838), the "Haddonfield Hadrosaur," is a national historic landmark.
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