boroughs (towns) in Union county, northeastern New Jersey, U.S., adjoining Elizabeth on the west. Originally part of Linden until 1894, Roselle was settled before the American Revolution; Abraham Clark, one of New Jersey's signers of the Declaration of Independence, was a native son. Mainly residential suburbs of New York City, both communities have some industry. Manufactures include pumps, paper products, plastics, tools, fire alarms, machinery, and metal products
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