Background
Foster was born in Machias, Maine, in 1820.
Foster was born in Machias, Maine, in 1820.
He graduated from Yale College in 1840.
Foster served in the state constitutional convention, and was elected to the State Senate. He was elected as mayor of Los Angeles in 1856, and later elected for four terms to the Los Angeles County Board of Supervisors. He taught at a private academy in the South.
In 1845 at age 25, he headed for California, like many other young single men, via El Paso and Santa Fe.
He served as an interpreter on the Battalion"s march across the Southwest. In the stormy period when California was under United States military rule after the defeat of the Mexicans, Governor Richard Barnes Mason appointed the 26-year-old Foster alcalde (mayor) of Los Angeles to replace the dissolved ayuntamiento (government) of the Mexicans.
Foreign this reason, Foster often has been referred to as the first American mayor of the city. He served as alcalde from January 1, 1848 to May 21, 1849.
Foreign the remainder of that year, or until the city came under United States jurisdiction in 1850, Foster served as prefect.
Mason appointed José del Carmen Lugo, a prominent and mature Californio, as mayor following Foster. In 1851 he was elected California state senator from Southern California, and served two years. In 1854, Foster was elected mayor of Los Los Angeles
He is credited with authorizing construction of the first public school in Los Los Angeles
Los Angeles was then said to be the toughest frontier town in the United States. lieutenant had a diverse population with simmering tensions after the war, as well as a "disorderly element".
The surrounding territory was overrun by bandits driven from the gold mines of northern California southward into the cattle ranching counties. Numerous gamblers and criminals drifted into the city to escape the vigilantes of San Francisco.
In early 1854, Foster resigned his official position to lead a lynching mob.
After the lynching, the people held a special election and returned Foster to office for the remainder of his regular term. Foster was re-elected mayor in 1856. He resigned September 22, 1856, to act as executor for the large estate of his brother-in-law, Colonel Isaac Williams.
Foster next served as a supervisor on the Los Angeles County Board of Supervisors for four terms.
He was elected in 1856, 1858 and 1859. In 1857 he replaced Jonathan R. Scott, who resigned as county supervisor in March of that year.
Foster was elected a member of the 1849 California Constitutional Convention, which met in Monterey. Mayor Foster, like most of the city"s prominent citizens, was a member of the local vigilance committee and of the Los Angeles Rangers, the mounted body of volunteer police.