them into service, making them part of a handful of three-year enlisted soldiers in April 1861. Unlike other regiments during the American Civil War, the 14th wore a uniform inspired by the French Chasseurs, a light infantry used for quick assaults. As a seaport and a manufacturing center, Brooklyn was well prepared to contribute to the Union's strengths in shipping and manufacturing. The two combined in shipbuilding; the ironclad Monitor was built in Brooklyn. Twin city Brooklyn is referred to as the twin city of New York in the 1883 poem, "The New Colossus" by Emma Lazarus, which appears on a plaque inside the Statue of Liberty. The poem calls New York Harbor "the air-bridged harbor that twin cities frame". As a twin city to New York, it played a role in national affairs that was later overshadowed by decades of subordination by its old partner and rival. During this period, the affluent, contiguous districts of Fort Greene and Clinton Hill (then characterized collectively as The Hill) were home to such notable figures as Astral Oil Works founder Charles Pratt and his children, including local civic leader Charles Millard Pratt; Theosophical Society co-founder William Quan Judge; and Pfizer co-founders Charles Pfizer and Charles F. Erhart. Brooklyn Heights remained one of the New York metropolitan area's most august patrician redoubts into the early 20th century under the aegis of such figures as abolitionist clergyman Henry Ward Beecher, educator-politician Seth Low, merchant-banker Horace Brigham Claflin, attorney William Cary Sanger (who served for two years as United States Assistant Secretary of War under Presidents William McKinley and Theodore Roosevelt) and publisher Alfred Smith Barnes. Economic growth continued, propelled by immigration and industrialization, and Brooklyn established itself as the third-most populous American city for much of the 19th century. The waterfront from Gowanus to Greenpoint was developed with piers and factories. Industrial access to the waterfront was improved by the Gowanus Canal and the canalized Newtown Creek. was the most famous product of the large and growing shipbuilding industry of Williamsburg. After the Civil War, trolley lines and other transport brought urban sprawl beyond Prospect Park (completed by Frederick Law Olmsted and Calvert Vaux in 1873 and widely heralded as an improvement upon the earlier Central Park) into the center of the county, as evinced by gradual settlement in comparatively rustic Windsor Terrace and Kensington. By century's end, Dean Alvord's Prospect Park South development