Olmsted and Vaux continued their informal partnership to design Prospect Park in Brooklyn from 1865 to 1873. Olmsted was a frequent collaborator with architect Henry Hobson Richardson for whom he devised the landscaping schemes for half a dozen projects including Richardson's commission for the Buffalo State Asylum. The firm lasted until 1980.
Frederick Law Olmsted (April 26 1822 – August 28 1903) was an American journalist social critic public administrator and landscape designer. In Chicago his projects include: Marquette Park; Jackson Park; Washington Park; the Midway Plaisance for the 1893 World's Columbian Exposition; the south portion of Chicago's "emerald necklace" boulevard ring; Cadwalader Park in Trenton New Jersey; and the University of Chicago campus. Olmsted was famous for co-designing many well-known urban parks with his senior partner Calvert Vaux including Central Park and Prospect Park in New York City.