Original: By the late 1800s, great shipping lines were using Hoboken as a terminal port, and the Delaware, Lackawanna & Western Railroad (later the Erie Lackawanna Railroad] developed a railroad terminal at the waterfront.
Simplified: By the 19th century,  shipping lines were using Hoboken as a port, and the Delaware, Lackawanna & Western Railroad (later the Erie Lackawanna Railroad) had became a railroad center at the waterfront.