Dorsey returned to teaching in 1896 at Los Angeles High School, where she rose to vice principal.

[5] The school has several athletic teams, such as wrestling, football (Coliseum League Champions for the 2006 season), basketball, track & field, soccer, and Tennis (champions: Kenneth Ajeakwa, Valentine Uzoukwu, Moses Egwurube and Robert Troy) 2007–2010.

Dorsey's football games are played in Jackie Robinson Stadium at the nearby Rancho Cienega Sports Complex.

Dorsey High School California Academic Decathlon teams won Los Angeles City Super Quiz championships in 1981, 1982, 1984, and 1985.

In 1989, the Dorsey High School Mock Trial Team earned 2nd Place in Los Angeles County and was the best team in the City of Los Angeles in the Constitutional Rights Foundation's Annual Mock Trial Competition.

Susan Miller Dorsey has the distinction of sending the fifth most football players to the NFL in its entire history behind Long Beach Poly.