City (pop., 2000: 12,945), southwestern California, U.S. It is east of Los Angeles and south of Pasadena .
In 1903 railroad magnate Henry E. Huntington (18501927) purchased the San Marino Ranch and founded the community, which was incorporated in 1913. His estate, deeded to the public, includes the Huntington Library (with rare English and American books and manuscripts), Art Gallery (where Thomas Gainsborough 's Blue Boy is displayed), and Botanical Gardens.