Rancho Cañada de los Osos y Pecho y Islay


Rancho Cañada de los Osos y Pecho y Islay was a Mexican land grant in Los Osos Valley and the southern Estero Bay headlands, in present-day San Luis Obispo County, California.
The grant consists of Rancho Cañada de Los Osos granted in 1842 by Governor Juan Bautista Alvarado to Victor Linares, and Rancho Pecho y Islay granted in 1843 by Governor Manuel Micheltorena to Francisco Badillo. The grants were consolidated in the 1845 grant of Rancho Cañada de los Osos y Pecho y Islay by Governor Pío Pico, to James Scott and John Wilson, after they had been purchased from the original grantees.
The Cañada de Los Osos grant extended from the Pacific Coast, along Los Osos Creek and the Los Osos Valley to almost present-day San Luis Obispo, and southward encompassed, Los Osos, Montaña de Oro State Park north of Islay Creek and the northern Irish Hills.
The Rancho Pecho y Islay grant was a strip of coastal plain along the Pacific Ocean that ran from Islay Creek to Pecho Creek and up that creek to the summit of the Irish Hills to the "boundary with the land of Don Victor Linares." It includes the southern part of Montaña de Oro State Park and the site of the Diablo Canyon Power Plant.

History

Rancho Cañada de Los Osos was granted in 1842 by Governor Alvarado to Victor Linares, and Rancho Pecho y Islay was granted in 1843 by Governor Micheltorena to Francisco Badillo. In 1844 John D. Wilson and James G. Scott bought Rancho Canada de Los Osos from Linares and the Pecho y Islay from Badillo. In 1845 the Canada de Los Osos rancho was combined with Rancho Pecho y Islay to the south, thus forming Rancho Cañada de Los Osos y Pecho y Islay.
Captain John Wilson, a Scottish-born sea captain and trader, came to California in 1837 with his business partner, James Scott, also a native of Scotland. In 1837, Wilson married María Ramona Carrillo de Pacheco, widow of José Antonio Romualdo Pacheco, who was killed at the Battle of Cahuenga Pass in 1831. Carrillo, was a daughter of Maria Ygnacia Lopez de Carrillo, the grantee of Rancho Cabeza de Santa Rosa, and María's sister married General Mariano Guadalupe Vallejo. María Ramona Carrillo de Pacheco was also the grantee of Rancho Suey. Wilson and his business partner, James Scott, owned Rancho Los Guilicos in Sonoma County and Rancho El Chorro and Rancho Cañada de los Osos y Pecho y Islay. Wilson alone also bought Rancho San Luisito and Rancho Huerta de Romualdo. In 1845, Wilson moved his family from San Luis Obispo to Rancho Cañada de los Osos & Pacheco y Islay, built an adobe home and lived there until his death in 1860.
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 Cañada de los Osos y Pecho y Islay was filed with the Public Land Commission in 1852, and the grant was patented to John Wilson in 1869.
The rancho was inherited by Wilson's wife, Ramona Carrillo Wilson and their daughter, Ramona Hilliard, who married Frederick Hilliard in 1862. Ramona Carrillo Wilson died in 1888. In 1891, Ramona Hilliard sold the southern portion of the Pecho y Islay ranch to Luigi Marre, and continued to operate the northern portion as leased land. Alden Spooner Jr. first leased in 1892. In 1901 Henry Cowell of San Francisco acquired a note of indebtedness on the Hilliard property and took control of the remaining Pecho ranch. In 1902, Alden Spooner Jr. bought it from Cowell's widow.

Historic sites of the Rancho