Rancho Asuncion
Rancho Asuncion was a Mexican land grant in present-day San Luis Obispo County, California. It was given in 1845 by Governor Pío Pico to Pedro Estrada.
The grant extended along the Salinas River in the Santa Lucia Range, and encompassed present-day Atascadero.History
Pedro Pascual Estrada, son of José Raimundo Estrada and Josefa Vallejo de Alvarado, was born in Monterey. Pedro Estrada was granted Rancho Asuncion, originally part of the Mission San Luis Obispo de Tolosa, in 1845. His brother Joaquín Tomas Estrada was granted the adjacent Rancho Santa Margarita in 1841.
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. As required by the Land Act of 1851, a claim for Rancho Asuncion was filed with the Public Land Commission in 1853, and the grant was patented to Pedro Estrada in 1866.
Pedro Estrada sold the rancho in 1861 to Martin Murphy Jr. and his wife Mary Bulger Murphy of Sunnyvale, who had come to California with the Stephens-Townsend-Murphy Party in 1844. The Murphys turned over running of the rancho to their son Patrick Murphy, who was a General in the California National Guard. Patrick Washington Murphy operated Rancho Asuncion, and the adjacent Rancho Atascadero, and Rancho Santa Margarita, altogether comprising about, from his Rancho Santa Margarita headquarters.