Rancho Laguna Seca (also called "Refugio de la Laguna Seca") was a 19,973-acre (80.83 km2) Mexican land grant in present day Santa Clara County, California given in 1834 by Governor José Figueroa to Juan Alvires.
In 1846 he decided to return, with his family, to Alta California and establish his home in the Pueblo of San José.
William Fisher was offered, but declined, the office of alcalde, probably because of continuing poor health and his involvement in raising cattle on the rancho and operating his mercantile business in San Jose.
With the cession of California to the United States following the Mexican-American War, the 1848 Treaty of Guadalupe Hidalgo provided that the land grants would be honored.
In 1857 Liberta Bull sold her half share (9,986 acres (40.4 km2)) to her son-in-law, Daniel Murphy, and married Caesar Piatti in 1858.