John Bryson served as Mayor of Los Angeles for a few months in 1889. In that time, he appointed all 6 of his sons to the then 80-man Los Angeles Police Department(1). He would later serve as President of the San Gabriel Valley Rapid Transit Railroad (2). This is a list of mayors of Los Angeles, California. ... Parker Center-LAPDs Headquarters LAPD redirects here. ... San Gabriel Valley within Southern California The San Gabriel Valley is one of the principal valleys of southern California. ...