Isaac Williams (ranchero)

Isaac Williams (1799–1856) was an American fur trapper, merchant, later a rancher and owner of Rancho Santa Ana del Chino in what is now the cities of Chino, California and Chino Hills, California in San Bernardino County, California.

Isaac Williams was born near Scranton, Pennsylvania, and had resided in Ohio and Missouri before leaving Fort Smith in 1831, with the Bean-Sinclair trapping party for the Rocky Mountains. At Taos he joined the Ewing Young fur trapping expedition that arrived in Los Angeles, Alta California on April 14, 1832. Williams remained there, where he became known as Julian by the locals, and worked as a merchant before he married Maria de Jesus Lugo, daughter of the ranchero Antonio Maria Lugo in 1839.

In 1841, Isaac Williams built a large adobe home, on the 22,000-acre Rancho Santa Ana del Chino which his wife acquired from his father-in-law Antonio Lugo. After bearing three children, Maria de Jesus died in childbirth in 1842. The following year, an addition to the rancho of three square leagues (for a total of eight square leagues) was granted by Governor Micheltorena to Williams.

During the Mexican American War the Battle of Chino occurred at the adobe on September 26-27, 1846, during which 24 Americans including Williams were captured by a group of about 50 Californios.

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