Native Americans broke into war in 1850, resulting in soldiers hunting down and massacring all the natives they could find, driving the remainder north toward Clear Lake. By 1870, the Native American population consisted of only a few laborers and servants working for the white settlers.

The City of Napa was founded by Nathan Coombs in 1847. General Mariano Guadalupe Vallejo had paid to survey for a township downriver at Soscol Landing, where riverboats