In 1801, the U.S. government purchased land on Wallabout Bay for the construction of the Brooklyn Navy Yard, stimulating some growth in the area. Ferry service linking Manhattan and Brooklyn launched in 1814, and Brooklyn's population exploded from 4,000 to nearly 100,000 by 1850. Fort Greene was known as The Hill and was home to a small commuter population, several large farms—the Post Farm, the Spader farm, the Ryerson Farm, and the Jackson farm—and a burial ground. As early as the 1840s the farms' owners began selling off their land in smaller plots for development. Country villas, frame row houses, and the occasional brick row house dotted the countryside, and one of them was home to poet Walt Whitman, editor of the "Brooklyn Eagle" newspaper.