Ford assembly plant, southwest corner of 21st and Harrison, built by the national company in 1912 and designed by Seattle architect John Graham. The Federal truck belonged to William L Hughson, who sold Ford automobiles in San Francisco from the first year of Ford's existence, in 1903, until Hughson's death in 1967. (WMK) The building became the San Francisco Trade School around 1948 and later known as John O'Connell High School. Damaged by the earthquake in 1989, the building was demolished in the early 1990s.