Frederick Law Olmsted (April 26, 1822 – August 28, 1903) was an American landscape architect, journalist, social critic, and public administrator. He was the father of American landscape architecture. Olmsted was famous for co-designing many well-known urban parks with his senior partner Calvert Vaux. One of Olmsted's early works included designing the Walnut Hill Park in New Britain, Connecticut. His later efforts included Central Park and Prospect Park in New York City and Cadwalader Park in Trenton. He headed the pre-eminent landscape architecture and planning consultancy of late nineteenth-century America, which was carried on and expanded by his sons, Frederick Jr and John C, under the name Olmsted Brothers.